Dilution water used in pesticide
Dilution water used in pesticide different effects on different physical and chemical properties of pesticides, can sometimes improve injury. If hard water is used to dilute EC pesticides could easily lead to injury.
Residual injury
Since long-term continuous use of a single strong pesticide residues, accumulated year after year be sensitive vegetable produce injury.
Drift injury
When the use of pesticides or mist drifting particles diffuse fly around sensitive crops would produce injury. Onion Field garden pressure sprayer spraying of herbicides such as cowpea easy to produce injury.
Not thoroughly cleaned sprayer
Spraying herbicide sprayer, if not thoroughly cleaned and then used for vegetable spray pesticides, herbicides residues in vegetables easy to produce injury.
Resistance factor
Different vegetables, different species, different growth stages of pesticide resistance are different. Brassicaceae, Solanaceae, Gramineae vegetables resistant strong, weak resistant leguminous vegetables, melons and vegetables Resistance of the weakest. Cabbage on copper fungicide sensitivity for carbaryl sensitive melons, melons, beans can not touch the 2,4-D herbicide. In addition, vegetables or plants at different growth stages of drug resistance in different parts of victims of different capacities, such as tender young vegetables and vegetable section, flowering resistant weak, prone to injury. Waxy or hairy leaves more vegetables is not easy to produce injury.
Environmental Factors
Hot spraying easy to produce injury, it is not easy spraying temperature, especially in hot weather do not knapsack power sprayer spraying when the temperature is high noon. Some pharmaceutical use in rainy weather prone to injury, such as rain, humid conditions using Bordeaux mixture prone to injury. Strong sunlight prone to injury. Less sandy soil and organic vegetables grown in soils prone to injury, followed by loam, clay soil organic matter and more difficult to cause injury.
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2013年11月5日星期二
Wettable powder and soluble powder
Wettable powders (WP)
It is the original drugs and fillers, wetting agents and dispersing agents after mechanical mixing of the powder formulations. The fine powder to be smaller ratio, wetting time is less than 2 minutes, suspension rate of greater than 60%. Wettable powder is mainly used for water spraying, dusting can not be used directly in the water back pack sprayers spraying, the active ingredient is not dissolved in water, but suspended in the water, and this is a key distinction between the soluble powder. Many on tobacco use fungicides and some insecticides are processed into a wettable powder is used, it has the advantage of relatively fine spray droplets, on the plant surface, strong adhesion, when spraying affected by wind little control effect is better than the same pesticide powder, Vinca longer. The kinds of formulations in fungicides accounted for a higher proportion of its efficacy generally do not have good EC, the current tobacco use on the most wettable powder pesticide formulations. Removal of the rainy season, the rest time can be the use of such agents. So class pharmaceutical diluted easy precipitation, thus resulting in injury, the best choice when preparing pharmaceutical secondary dilution method.
Soluble powder (WS)
Can be directly dissolved in water using powdered pesticide formulations, generally known as water-soluble powder on pesticides. WP like the appearance of the formulation, and the active ingredient content is usually higher than wettable powders, generally up to 60% - 90%. With insecticides, both active ingredients are the same, the efficacy of soluble powder than wettable powder. Compared with the EC, efficacy is similar, but without the use of organic solvents, reduce product costs,garden hand sprayers reduce environmental pollution, while highlighting the advantages of such agents, but in China is still in the development application stage.
It is the original drugs and fillers, wetting agents and dispersing agents after mechanical mixing of the powder formulations. The fine powder to be smaller ratio, wetting time is less than 2 minutes, suspension rate of greater than 60%. Wettable powder is mainly used for water spraying, dusting can not be used directly in the water back pack sprayers spraying, the active ingredient is not dissolved in water, but suspended in the water, and this is a key distinction between the soluble powder. Many on tobacco use fungicides and some insecticides are processed into a wettable powder is used, it has the advantage of relatively fine spray droplets, on the plant surface, strong adhesion, when spraying affected by wind little control effect is better than the same pesticide powder, Vinca longer. The kinds of formulations in fungicides accounted for a higher proportion of its efficacy generally do not have good EC, the current tobacco use on the most wettable powder pesticide formulations. Removal of the rainy season, the rest time can be the use of such agents. So class pharmaceutical diluted easy precipitation, thus resulting in injury, the best choice when preparing pharmaceutical secondary dilution method.
Soluble powder (WS)
Can be directly dissolved in water using powdered pesticide formulations, generally known as water-soluble powder on pesticides. WP like the appearance of the formulation, and the active ingredient content is usually higher than wettable powders, generally up to 60% - 90%. With insecticides, both active ingredients are the same, the efficacy of soluble powder than wettable powder. Compared with the EC, efficacy is similar, but without the use of organic solvents, reduce product costs,garden hand sprayers reduce environmental pollution, while highlighting the advantages of such agents, but in China is still in the development application stage.
2013年11月4日星期一
Rational use of pesticides and precautions
Rational use of pesticides should be safe, effective, economical , namely pesticides in mastering performance , based on the scientific use , give full play to its efficacy, it is both effective insect pest control , but also ensure to livestock , crops and other beneficial organisms security . Rational use of pesticides , should pay attention to grasp the following principles :
1 , the right medicine , a clear control object . Select pesticides , to clarify the physiological mechanism of control object characteristics and hazards , as well as varieties of crops , such as reproductive period , field varied kinds of pests that occur every kind of different agents reactions are different, even the same different types of populations are very different . After the control object in the clear , and then select the appropriate pesticides . For example , control borer , available Bataan , pyrantel pamoate , furosemide feeding Dan .
2 , improve pest surveys , grasp the key period of bottle sprayer spraying. Carefully before applying for pest surveys , master control period , the best control during spraying. Otherwise spraying prematurely , efficacy period does not coincide with pest control , would not achieve the role of damage control . Spraying late effect is poor, not only would not achieve the control effect and cause pesticide waste. Therefore , spraying should take a good "heat ", select pests weaknesses or sensitive period of pesticides , insecticides should have in general to 3rd instar larvae hatching before fungicides currently in use , mostly to protect nature, the treatment less effective. Therefore, disease prevention and control , should be before the onset or early onset of drug use, if you wait until then hand sprayers spraying disease has been popular , it is difficult to achieve good control effect.
3, can not arbitrarily increase the dosage or an increase in drug concentration . Many farmers mistakenly believe that increasing the dosage or an increase in drug concentration control efficiency will increase , therefore, does not follow the instructions above to increase the dosage requirement is widespread . In addition, farmers in the dispensary is not measuring, only random amount of the cap , the lack of numerical concepts , resulting in greatly excessive use of drugs , do not only wasteful , but also prone to injury. Environment has been seriously polluted , endangering human and animal safety .
1 , the right medicine , a clear control object . Select pesticides , to clarify the physiological mechanism of control object characteristics and hazards , as well as varieties of crops , such as reproductive period , field varied kinds of pests that occur every kind of different agents reactions are different, even the same different types of populations are very different . After the control object in the clear , and then select the appropriate pesticides . For example , control borer , available Bataan , pyrantel pamoate , furosemide feeding Dan .
2 , improve pest surveys , grasp the key period of bottle sprayer spraying. Carefully before applying for pest surveys , master control period , the best control during spraying. Otherwise spraying prematurely , efficacy period does not coincide with pest control , would not achieve the role of damage control . Spraying late effect is poor, not only would not achieve the control effect and cause pesticide waste. Therefore , spraying should take a good "heat ", select pests weaknesses or sensitive period of pesticides , insecticides should have in general to 3rd instar larvae hatching before fungicides currently in use , mostly to protect nature, the treatment less effective. Therefore, disease prevention and control , should be before the onset or early onset of drug use, if you wait until then hand sprayers spraying disease has been popular , it is difficult to achieve good control effect.
3, can not arbitrarily increase the dosage or an increase in drug concentration . Many farmers mistakenly believe that increasing the dosage or an increase in drug concentration control efficiency will increase , therefore, does not follow the instructions above to increase the dosage requirement is widespread . In addition, farmers in the dispensary is not measuring, only random amount of the cap , the lack of numerical concepts , resulting in greatly excessive use of drugs , do not only wasteful , but also prone to injury. Environment has been seriously polluted , endangering human and animal safety .
To de-worming medication flowers counterpart
In actual production , flowers , like other crops are also vulnerable to a variety of pest infestation . Flowers in the fight against pests , such as insects according to different mouthparts symptomatic spraying , to improve the control effect will be of great benefit.
Chewing mouthparts of insects , such as yellow slug , the day suddenly caterpillars, beetle daisy , leaf miner , grubs , black cutworm , mole crickets, flies and other species , damage flowers , fruit tree sprayer the principal cause floral tissue mechanical damage. Leaf feeding pests such as flowers , leaves often cause defects , and even leaves eaten ; eats flowers, stems , fruits and seeds of pest infestation drill into its internal organization , often caused by holes in the surface , the formation of worms in the internal tract ( such as chrysanthemum beetles, bees , etc. rose stems ) ; lurking in leaf epidermal between feeding pests leaves left in the serpentine road insects , often the leaves wither , caducous ; feeding after sowing seed , seedling roots , corms , bulbs and tubers and other flowers underground pests , often caused Deficiency or seedling lodging, and even whole dead . Flowers in the fight against chewing insects , the stomach may be the preferred toxic pesticides , the most commonly used agents have trichlorfon , sodium fluoride , etc. The absorption of chemical agents such as monocrotophos, omethoate and other chewing mouthparts and has a good killing effect .
For sucking mouthparts , which feeding method is to use the mouth needle into flower leaves, flowers, shoots , stems and other tissues , drawing juice. Flower shape suffer no mechanical damage , only parts of the formation in the victim faded spots, or cause tissue malformations ( such as wrinkled leaves , leaf , galls , etc. ) , common pests sucking mouthparts scale insects, aphids, thrips , whiteflies , mites and other insects. In the fight against sucking mouthparts damage , the drug of choice is a systemic insecticide , such as omethoate , monocrotophos , carbofuran and so on.manual sprayer Contact toxicity of insecticides such as malathion , phoxim , cypermethrin , deltamethrin and other pests on flowers and has a good control effect. It should be noted that the prevention of gastric toxicity of pesticides on flower sucking mouthparts pests largely ineffective .
Chewing mouthparts of insects , such as yellow slug , the day suddenly caterpillars, beetle daisy , leaf miner , grubs , black cutworm , mole crickets, flies and other species , damage flowers , fruit tree sprayer the principal cause floral tissue mechanical damage. Leaf feeding pests such as flowers , leaves often cause defects , and even leaves eaten ; eats flowers, stems , fruits and seeds of pest infestation drill into its internal organization , often caused by holes in the surface , the formation of worms in the internal tract ( such as chrysanthemum beetles, bees , etc. rose stems ) ; lurking in leaf epidermal between feeding pests leaves left in the serpentine road insects , often the leaves wither , caducous ; feeding after sowing seed , seedling roots , corms , bulbs and tubers and other flowers underground pests , often caused Deficiency or seedling lodging, and even whole dead . Flowers in the fight against chewing insects , the stomach may be the preferred toxic pesticides , the most commonly used agents have trichlorfon , sodium fluoride , etc. The absorption of chemical agents such as monocrotophos, omethoate and other chewing mouthparts and has a good killing effect .
For sucking mouthparts , which feeding method is to use the mouth needle into flower leaves, flowers, shoots , stems and other tissues , drawing juice. Flower shape suffer no mechanical damage , only parts of the formation in the victim faded spots, or cause tissue malformations ( such as wrinkled leaves , leaf , galls , etc. ) , common pests sucking mouthparts scale insects, aphids, thrips , whiteflies , mites and other insects. In the fight against sucking mouthparts damage , the drug of choice is a systemic insecticide , such as omethoate , monocrotophos , carbofuran and so on.manual sprayer Contact toxicity of insecticides such as malathion , phoxim , cypermethrin , deltamethrin and other pests on flowers and has a good control effect. It should be noted that the prevention of gastric toxicity of pesticides on flower sucking mouthparts pests largely ineffective .
2013年11月3日星期日
Neem in organic vegetable production application
Most plants contain neem insecticide , anthelmintic , antifeedant substances such as neem , TSN , Neem etc. Neem Neem is a deciduous tree , widely distributed in northern China , and its roots, leaves and fruits contain Toosendanin , you can control a variety of borers , planthoppers , caterpillar , aphids , etc. Bark and leaves contain Toosendanin , alkaloids, kaempferol , phenol and other substances, including bitter fruit quality ; nucleolus containing neem oil.
Mechanism: insects, insect , poor feeding , growth inhibition.
Control target: bollworm , aphids , diamondback moth , beet armyworm, cutworms, Pieris , potatoes ladybug , mites , leafhoppers, leafminers and a variety of whiteflies .
Preparation and use:
Aqueous extract of neem seed production : back pack sprayer Collect the neem tree fruit falls to the ground , remove the flesh , the seeds were washed on the flesh . The seeds are then stored in ventilated place, at the child when needed peeled , chopped, wrapped in a cloth soaked in a bucket within 24 hours, compared to the flooding liter 25-50g. Thus prepared extract on Pieris , melon leaf beetle and locust very effective.
The 5kg neem seed powder wrapped in a cloth inside , soak in a bucket within 12 hours after the squeeze bag , and the other with a little water to melt 10kg soap, into the barrel , stir , add water so that the liquid reaches 100L, spray can control corn borer .
Neem oil production: handmade neem oil. First seeds hulled, inside scoop mashed into a paste to brown , add a little water mass into a ball , kneading in the basin until the surface leaking oil, then beat , neem oil will drop . In this way , 1kg neem seed kernel can be refined 100-150ml Neem oil.
Neem oil with a little soapy water emulsion , diluted with water to 100-200 times can effectively control mites and planthoppers .
Botanical pesticides pest and disease prevention , ecological protection, pollution-free vegetable production preferred pharmacy, there are a large number of existing plants has bactericidal , water power sprayer insecticidal species such as Ailanthus , datura , purslane , walnuts , etc. , to be in our further research applications.
Mechanism: insects, insect , poor feeding , growth inhibition.
Control target: bollworm , aphids , diamondback moth , beet armyworm, cutworms, Pieris , potatoes ladybug , mites , leafhoppers, leafminers and a variety of whiteflies .
Preparation and use:
Aqueous extract of neem seed production : back pack sprayer Collect the neem tree fruit falls to the ground , remove the flesh , the seeds were washed on the flesh . The seeds are then stored in ventilated place, at the child when needed peeled , chopped, wrapped in a cloth soaked in a bucket within 24 hours, compared to the flooding liter 25-50g. Thus prepared extract on Pieris , melon leaf beetle and locust very effective.
The 5kg neem seed powder wrapped in a cloth inside , soak in a bucket within 12 hours after the squeeze bag , and the other with a little water to melt 10kg soap, into the barrel , stir , add water so that the liquid reaches 100L, spray can control corn borer .
Neem oil production: handmade neem oil. First seeds hulled, inside scoop mashed into a paste to brown , add a little water mass into a ball , kneading in the basin until the surface leaking oil, then beat , neem oil will drop . In this way , 1kg neem seed kernel can be refined 100-150ml Neem oil.
Neem oil with a little soapy water emulsion , diluted with water to 100-200 times can effectively control mites and planthoppers .
Botanical pesticides pest and disease prevention , ecological protection, pollution-free vegetable production preferred pharmacy, there are a large number of existing plants has bactericidal , water power sprayer insecticidal species such as Ailanthus , datura , purslane , walnuts , etc. , to be in our further research applications.
Castor in organic vegetable production application
Castor plant organs contain ricinine . There ricinine paralytic poisoning the insects produce pharmacological effects .low pressure sprayer Tanabe farm in northern China , often planted around their houses to a large number of castor lightly .
Castor leaves : castor leaf water ( leaf water ratio : 1:8 fresh leaves , dry leaves 1:50 ) and cook for 1 hour, filtered to the residue , add a small amount of soap, can Pensha caterpillar and so on.
Castor Seeds : Castor seed pounded with water ( kind of water ratio of 1:1 ) stir well , then pour a small amount of soapy water , and diluted with water to 100-150 times, can Pensha gold shells and a variety of vegetables aphids.
Castor oil cakes : castor oil cakes plus water plus soap ( ratio of 1:5:0.1 ) , impregnated , soap to the open,chemical sprayer filtered to the residue , can Pensha chafers and various vegetables aphids.
Castor Straw : The castor leaves, stalks , roots and dried crushed to 50kg per acre amount into the soil , you can control grubs hazards.
Castor leaves : castor leaf water ( leaf water ratio : 1:8 fresh leaves , dry leaves 1:50 ) and cook for 1 hour, filtered to the residue , add a small amount of soap, can Pensha caterpillar and so on.
Castor Seeds : Castor seed pounded with water ( kind of water ratio of 1:1 ) stir well , then pour a small amount of soapy water , and diluted with water to 100-150 times, can Pensha gold shells and a variety of vegetables aphids.
Castor oil cakes : castor oil cakes plus water plus soap ( ratio of 1:5:0.1 ) , impregnated , soap to the open,chemical sprayer filtered to the residue , can Pensha chafers and various vegetables aphids.
Castor Straw : The castor leaves, stalks , roots and dried crushed to 50kg per acre amount into the soil , you can control grubs hazards.
2013年11月1日星期五
Precautions to improve herbicide efficacy
Note that the right choice according to crop and weed herbicide right choice herbicides. If Tribenuron for wheat in the northern broadleaf weeds , grass weeds good effect on wheat relatively safe , but if it will be used on crops such as rapeseed fields produce injury , and even death rapeseed .
Note that the selected medication suitable period of nature according to herbicides , weeds occurred during the selected medication timing. Soil treatment medication, such as acetochlor in crops after sowing , pre-emergence weed medication, can increase efficacy ; seedling foliar treatment medication should be in before the 2-leaf stage of weeds and crop 2 leaf stage after medication. In addition, some will be affected by the level of herbicide efficacy light , temperature, soil moisture effects, such as glyphosate and other high efficacy in the sun is strong , it should choose a sunny spraying ; Chlortoluron , dicamba , etc. at 5 ℃ the following herbicidal effect is poor, it should be avoided before and after cold medication ;perfume sprayer acetochlor herbicide in the soil humidity, good effect, if the drought, irrigation or rainfall should be after the spraying.
Note pharmaceutical formulation and application techniques to improve WP watered administered , can be washed with a small amount of water to preweighed medicament into a paste, then pour the sprayer , then add the right amount of water to mix. Special small amount ( about 1 gram per acre ) , plus a small amount of water should be first dubbed Pharmacy liquor , into sprayer , add water and mix thoroughly diluted to the desired concentration . Liquid herbicides should first spray by adding a certain amount of water, then add the additional dose, and then injected into the water to be added and stirring plus side . Use clean water liquid preparation, such as glyphosate added easily mud muddy water adsorption passivation agents , reduce the efficacy. Mu water generally 30 to 45 kg is appropriate . When spraying should also pay attention to the frequency of the hand pressure sprayer , human walking speed , nozzle height remained the same ,portable sprayers and each spray pattern width to be the same , to avoid re-spray , leak spray , spraying should be careful not to let drugs fog drift to other neighboring crops .
Note mix , alternating the use of herbicides with herbicides used continuously for many years , easily lead to resistant weeds , so herbicides only mixed-use and inter-annual used interchangeably in order to achieve the purpose of long-term control of weeds .
Note that the selected medication suitable period of nature according to herbicides , weeds occurred during the selected medication timing. Soil treatment medication, such as acetochlor in crops after sowing , pre-emergence weed medication, can increase efficacy ; seedling foliar treatment medication should be in before the 2-leaf stage of weeds and crop 2 leaf stage after medication. In addition, some will be affected by the level of herbicide efficacy light , temperature, soil moisture effects, such as glyphosate and other high efficacy in the sun is strong , it should choose a sunny spraying ; Chlortoluron , dicamba , etc. at 5 ℃ the following herbicidal effect is poor, it should be avoided before and after cold medication ;perfume sprayer acetochlor herbicide in the soil humidity, good effect, if the drought, irrigation or rainfall should be after the spraying.
Note pharmaceutical formulation and application techniques to improve WP watered administered , can be washed with a small amount of water to preweighed medicament into a paste, then pour the sprayer , then add the right amount of water to mix. Special small amount ( about 1 gram per acre ) , plus a small amount of water should be first dubbed Pharmacy liquor , into sprayer , add water and mix thoroughly diluted to the desired concentration . Liquid herbicides should first spray by adding a certain amount of water, then add the additional dose, and then injected into the water to be added and stirring plus side . Use clean water liquid preparation, such as glyphosate added easily mud muddy water adsorption passivation agents , reduce the efficacy. Mu water generally 30 to 45 kg is appropriate . When spraying should also pay attention to the frequency of the hand pressure sprayer , human walking speed , nozzle height remained the same ,portable sprayers and each spray pattern width to be the same , to avoid re-spray , leak spray , spraying should be careful not to let drugs fog drift to other neighboring crops .
Note mix , alternating the use of herbicides with herbicides used continuously for many years , easily lead to resistant weeds , so herbicides only mixed-use and inter-annual used interchangeably in order to achieve the purpose of long-term control of weeds .
How to use glyphosate vegetable
Some farmers ask: " where you can use in vegetable Herbicide Glyphosate do ? " Yes, but pay special attention to the use of technology , otherwise easily cause injury to the vegetables !
Glyphosate , also known as Roundup , glyphosate , farmers' music , etc., is an organic phosphorus herbicide active ingredient glyphosate on weeds within the absorption spectrum Destuctive type herbicidal action for foliar treatment , deep- rooted perennial weeds can be killed underground parts, but you will soon encounter soil failure , for failure to weed unearthed invalid .
Use of glyphosate , the general and other weeds out of Qi , 4 to 6 leaf stage , with 10 % water 0.5 to 1 kg per acre , plus diesel oil 100 ml , add water about 20 to 30 kg , evenly spray weed stems .
Glyphosate herbicide for vegetable , vegetable garden is no vegetables should only be used when per acre with 10 % water 0.5 to 1 kg, the eradication crabgrass, annual bluegrass , Amaranthus spinosus , wild peas and other weeds . With 10% aqueous 1 to 1.5 kg , elimination nutsedge , plantain , small canadensis year, Peng and other weeds . With 10% aqueous 2 to 2.5 kg , elimination Imperata , reeds, Ploughshares grass, half bottle , dog shoots root , Pinellia and other weeds . Both on the water 60 to 75 kg, and the whole field garden sprayers spray.
On weeds by foliar application , the non- liquid contact with the vegetables and other crops , to prevent injury.
Chives to herbicides should be the day after the harvest leeks ( can not drag day medication ) , with 41% Roundup agent, based on annual weeds plots, with liquid 0.2 liters . Perennial weeds in plots with aqueous 0.3 liters of water 30 kg , the whole field spraying liquid.
Lily to herbicides , it would be flowering lily , washed with 10% aqueous 1 to 2 kg , 50 kg of water , spraying the whole field , to eradicate Imperata , Paspalum distichum , dog root buds , yellow ( purple ) Cyperus and other weeds . On lily secure.
When spraying , use 0.8 mm diameter nozzle than the commonly used 1.0 mm diameter nozzle effect. Pharmacy effective after contact with stems and leaves , knapsack sprayer spraying should be uniform , so that weeds adhesion agents.
With a lower hardness of water preparation of liquid , used to be repeated cleaning spray to avoid future injury caused by use of other crops . Not with MCPA , Gramoxone and other fast-acting herbicides mixed use . Such as glyphosate adding 0.1% detergent, or the amount added to 30 g of diesel per acre , can enhance the efficacy .
Glyphosate , also known as Roundup , glyphosate , farmers' music , etc., is an organic phosphorus herbicide active ingredient glyphosate on weeds within the absorption spectrum Destuctive type herbicidal action for foliar treatment , deep- rooted perennial weeds can be killed underground parts, but you will soon encounter soil failure , for failure to weed unearthed invalid .
Use of glyphosate , the general and other weeds out of Qi , 4 to 6 leaf stage , with 10 % water 0.5 to 1 kg per acre , plus diesel oil 100 ml , add water about 20 to 30 kg , evenly spray weed stems .
Glyphosate herbicide for vegetable , vegetable garden is no vegetables should only be used when per acre with 10 % water 0.5 to 1 kg, the eradication crabgrass, annual bluegrass , Amaranthus spinosus , wild peas and other weeds . With 10% aqueous 1 to 1.5 kg , elimination nutsedge , plantain , small canadensis year, Peng and other weeds . With 10% aqueous 2 to 2.5 kg , elimination Imperata , reeds, Ploughshares grass, half bottle , dog shoots root , Pinellia and other weeds . Both on the water 60 to 75 kg, and the whole field garden sprayers spray.
On weeds by foliar application , the non- liquid contact with the vegetables and other crops , to prevent injury.
Chives to herbicides should be the day after the harvest leeks ( can not drag day medication ) , with 41% Roundup agent, based on annual weeds plots, with liquid 0.2 liters . Perennial weeds in plots with aqueous 0.3 liters of water 30 kg , the whole field spraying liquid.
Lily to herbicides , it would be flowering lily , washed with 10% aqueous 1 to 2 kg , 50 kg of water , spraying the whole field , to eradicate Imperata , Paspalum distichum , dog root buds , yellow ( purple ) Cyperus and other weeds . On lily secure.
When spraying , use 0.8 mm diameter nozzle than the commonly used 1.0 mm diameter nozzle effect. Pharmacy effective after contact with stems and leaves , knapsack sprayer spraying should be uniform , so that weeds adhesion agents.
With a lower hardness of water preparation of liquid , used to be repeated cleaning spray to avoid future injury caused by use of other crops . Not with MCPA , Gramoxone and other fast-acting herbicides mixed use . Such as glyphosate adding 0.1% detergent, or the amount added to 30 g of diesel per acre , can enhance the efficacy .
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