RESISTANCE OF DIAMOND BACK MOTH TO BACILLUS THURINGIENSIS AND ITS MANAGEMENT STRATEGY

RESISTANCE OF DIAMOND BACK MOTH TO BACILLUS THURINGIENSIS AND ITS MANAGEMENT STRATEGY

DAI Cheng-Yong¹;YIN Xiang-Dong¹;XU Xi¹;ZHANG Hong-Wei¹;SHUAI Ying-Yuan²; FENG Xia²;CHEN Huan-Yu²

1.Applied Microbiology Lab.,Agricultural Research Institute,Lixiahe Region,Yangzhou,Jiangsu 225002;2.Plant Protection Institute,Guangdong Academy of Agricultual Sc iences, Guangzhou

Received:1900-01-01 Revised:1900-01-01 Online:1994-05-08 Published:1994-05-08

Abstract

Abstract: This paper reports the resistance of diamond back moth(DBM), Plutella xylostela , to Bacillus thuringiensis (Bt)in Southern China.The resistance of DBM to B t in Shenzhen,Guangzhou and some other areas of Southern China was found to be 1 0 25 times(average of 17 times)greater than that of the DBM in Yangzhou.The res istance to Bt by a Thailand strain of DBM was 46% greater than that in Southern China.The resistant DBM was subjected to four common stereotypes of Bt,viz.H1,H3 ,H5 and H7.The results of the tests also indicated that the DBM had no cross res istance against Bt and the tested chemical pesticides.Mixed formulation of Bt an d the chemical pesticides gave good control results.This technique has been appl ied in Shenzhen and Guangzhou areas,resulted in 81.5 90.9% mortality of DBM.

CLC Number:

S482.7

DAI Cheng-Yong¹;YIN Xiang-Dong¹;XU Xi¹;ZHANG Hong-Wei¹;SHUAI Ying-Yuan²; FENG Xia²;CHEN Huan-Yu². RESISTANCE OF DIAMOND BACK MOTH TO BACILLUS THURINGIENSIS AND ITS MANAGEMENT STRATEGY[J]. , DOI: .

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RESISTANCE OF DIAMOND BACK MOTH TO BACILLUS THURINGIENSIS AND ITS MANAGEMENT STRATEGY

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