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Cotton Bollworm Control in North China in 1995

C.F. Sheng


The cotton bollworm has become the most serious pest and caused a redistri-bution of China's cotton producing region. In 1995, it occurred in outbreaks again in North China. The numbers of the cumulative eggs on 100 cotton plants (ca. 15-19 square meters) were 1,000-5,000, 200-500, and 1,000-4,000 during the 2nd, 3rd, and 4th generations, respectively. In general, the population levels of the first three generations in 1995 were much higher than those in 1994, but lower than those in 1992 and 1993. Research progress was made in control strategy and tactics. The community-wide unified control strategy was demonstrated and extended in a larger area resulting in a better control of the pest. It is estimated that the national lint yield was 4-4.25 million tons for the season.

Reprinted from Proceedings of the 1996 Beltwide Cotton Conferences pp. 878 - 882
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998