Study on the occurrence and control strategy of Pseudaulacaspis pentagona

@inproceedings{Aihua2005StudyOT,
  title={Study on the occurrence and control strategy of Pseudaulacaspis pentagona},
  author={Yang Ai-hua},
  year={2005}
}
Pseudaulacaspis pentagona Targioni has two or three generations each year on apricot trees grown in greenhouse in Zhengzhou area,Henan province. Practice proved the best time for insecticide spraying was at the majority eggs hatching and nymphae spreading stage. Avermectin + chlorpyrifos 24EC 160-240 mg/L,or avermectin + mineral oil 24.5EC 163.3 mg/L was efficient and safe for spraying in early and middle April. When at the second nymphae spreading stage, Avermectin + chlorpyrifos 24EC 160-240… CONTINUE READING