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Study on the Bionomics Control Thecodiplosis japonensis Uchida & Inouye

Sheng Youai (Forest Disease and Pest Control and Quarantine Station of Yongding County, Yongding 364100)  
This paper studied wholly and systematically the biological characteristics and control of Thecoldiplosis japonensis Uchida Inouye which damages the P Massoniana at first The results showed that there was the best control effect after spraying the larvaes going down the trees for overwintering and the insects with parathion (22 5kg/ha) or 50% phoxim diluted by 1000 times on the earth on January and April
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