Around the use of these pesticides

Soil treatment . Sprinkle with pesticides or green manure crops in the soil surface , followed by plowing buried , or agents in plant roots ditching applicator or poured to kill or inhibit soil pests . For example, with 2.5% trichlorfon powder 2 to 2.5 kg dry mixing 25 grams of fine soil , sprinkle on the green manure , sprinkle with plowing with the prevention and treatment of black cutworm is very effective , hand pump sprayers and if the per acre with 3% carbofuran granules dry agent 1.5 to 2 grams of corn , soybeans and sugarcane rhizosphere ditching applicator can effectively combat these crops on a variety of pests .

Fumigation . Toxic gases using agents , in a closed condition, to eliminate the Gelechiidae warehousing grain cotton , bean weevil , Tribolium castaneum , pink and so on. For example, methyl bromide fumigation of grain, cotton seed , beans and other winter positions per 1,000 cubic meters solid dosage is 30 kg , fumigation three days time . Summer fumigation dosage may be less, time can be shorter. Also in the field fumigation method can also be used , such as poison rods made ​​with dichlorvos twigs cast on cotton ,manual sprayer it can be smoked to kill boll of some pests.