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Your Position :Home->Past Journals Catalog->2002 Vol.3

Occurrence and chemical control of the second generation of cotton bollworm(Helicoverpa armigera) in tomato field.
Author of the article:WANG De-Xu,ZHANG Wei,JIANG Zhen-Xiang,SU Wei-Gong
Author's Workplace:(Plant Protection Station of Laixi, Laixi 266600,China).
Key Words:tomato; cotton bollworm (Helicoverpa armigera); occurrence; chemical control
Abstract:The damage of the second generation cotton bollworm to tomato is much serious in Laixi, Shandong Province. 95% eggs is laid on the tender top, tender calyx and the base of stem. There are 32.8 eggs on average each plant from June 20 to July 5. The relatio
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