Poor ten reasons pesticide efficacy

Medication timing allowed to grasp . Be sure to seize the opportunity to fight drugs , only to understand what happened pests law , timely medication, order Qin effect.

Improper application methods . Field occurrence of pests , hazards, and perched on crops have a hazard area, this particular site is that pesticides should hit the target . Not hit the target , pesticide control effect backward .

Increased resistance to pests . Pathogen and pest resistance to pesticides is today hampered play its control effect of pesticides and the potential effectiveness of reality.

Do not understand technology , control object is not clear. When the insects to fight disease , when the disease to kill insects , grass and insects in addition to do , this is primarily diagnostic error , discriminant unclear , leading to medication errors , prevent the poor and even injury.

Spraying liquid wastage . Currently widely used in rural spraying equipment, labor intensive , waste, coarse grain fog , anti- poor efficiency . This sprayers mist particles , poor adhesion , deposition rate, liquid dripping in the soil , the loss in the waters , not only wasted a liquid, but also seriously pollute the environment.

Control effect of pesticides own limitations . Some pesticides on some pest has good control effect, but for others powerless pest control effect is poor.

Application time is not a good grasp . Insect activity dominated by the law of alternating day and night , but also has its own " biological clock ." Therefore, we should grasp the pest activity patterns , in the day , respectively, at different times , targeted sprayer spraying on time in order to achieve the best results.

Weather conditions set . Different meteorological conditions are closely related with the control effects of pesticides . Different temperature , humidity, light , wind , Teenage etc. on pest occurrence , activity patterns and control effect has an impact. Large liquid wind drift , disperse , affecting control effect. Applying EC formulations of pesticides , spraying requires no rain within 24 hours .

Predators reduced. Since a large number of successive application of highly toxic , high residue pesticides, natural enemies of pests were greatly killing , the destruction of the ecological balance , portable power sprayer resulting in pest resurgence , forming a vicious cycle.

Water quality against the drug causes. Water has hard and soft water of the points. Well water , mine water, some mountain springs are mostly hard water , dilute pesticide poor results, due to contain minerals that will decompose pesticide active ingredients ; while ponds , rivers , streams , mostly water softener , mineral content, dilution effect of pesticides , but these ponds , rivers such as very muddy , will also affect the efficacy of the play .