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Durative Control Willow Pests through Trunk Injection

Tang Guang-hui, He Jun, Feng Jun-tao, Anliang Chen, Xing Zhang

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Abstract

The field bioassays of 4 insecticides(15% Imidacloprid+ DDVP,4.5%Imidacloprid,30%DDVP+omethoate trunk injection and 3%Acetamiprid EC) were concluded against Plagildera versiclolora,Aphis farinosa and Holotrichia oblita.The results showed that 15% Imidacloprid+DDVP and 4.5%Imidacloprid exhibited high efficiency against the 3 insects tested,and provided extended residual effectiveness,up to 110 days under optimum conditions.After trunk injection by the dosage of 0.4mL/cm trunk diameter in spring,the pesticides can control pest occurred different time during one growth periodicity.3% Acetamiprid could effectively control H.oblita within 110 days.30% DDVP+omethoate had a 38-day residual effectiveness against P.versiclolora and A.farinosa.

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What this paper is about

The field bioassays of 4 insecticides(15% Imidacloprid+ DDVP,4.5%Imidacloprid,30%DDVP+omethoate trunk injection and 3%Acetamiprid EC) were concluded against Plagildera versiclolora,Aphis farinosa and Holotrichia oblita.The results showed that 15% Imidacloprid+DDVP and 4.5%Imidacloprid exhibited high efficiency against the 3 insects tested,and provided extended residual effectiveness,up to 110 days under optimum conditions.After trunk injection by the dosage of 0.4mL/cm trunk diameter in spring,the pesticides can control pest occurred different time during one growth periodicity.3% Acetamiprid could effectively control H.oblita within 110 days.30% DDVP+omethoate had a 38-day residual effectiveness against P.versiclolora and A.farinosa.

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Available abstract

The field bioassays of 4 insecticides(15% Imidacloprid+ DDVP,4.5%Imidacloprid,30%DDVP+omethoate trunk injection and 3%Acetamiprid EC) were concluded against Plagildera versiclolora,Aphis farinosa and Holotrichia oblita.The results showed that 15% Imidacloprid+DDVP and 4.5%Imidacloprid exhibited high efficiency against the 3 insects tested,and provided extended residual effectiveness,up to 110 days under optimum conditions.After trunk injection by the dosage of 0.4mL/cm trunk diameter in spring,the pesticides can control pest occurred different time during one growth periodicity.3% Acetamiprid could effectively control H.oblita within 110 days.30% DDVP+omethoate had a 38-day residual effectiveness against P.versiclolora and A.farinosa.

Key concepts: Omethoate, Imidacloprid, Acetamiprid, Toxicology, Willow, Pest control, Pesticide, Biology

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