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Insect problem has been one of the most severe problems in agriculture and forestry, which causes great economic losses to the primary industry in China. For a long time, the use of chemical insecticides for insect control has led to many issues, such as pollution, insect resistance, etc. Therefore, in recent years, the research and application on biological pesticides of broad spectrum, high efficiency and low toxicity is increasing. Insecticidal proteins, especially those of microbial source, as an important branch of biological insecticides, have been continuously developed and applied due to their excellent insecticidal potential. This paper aims to classify the information on insecticidal proteins from microorganism over the world, and to provide fresh opinions for the application of insecticidal proteins in agriculture, forestry and other industries in China.

Copyright of Chinese Journal of Applied Entomology is the property of Chinese Journal of Applied Entomology, Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Applied Entomology is the property of Chinese Journal of Applied Entomology, Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Xinjiang Agricultural Sciences is the property of Xinjiang Agricultural Sciences Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

[Objective]The present paper aimed to identify the integrated effect of Pellioditis spp. PC) 1 and B. bassiana Bbn6 on tobacco White Grubs (Holotrichia parallela). [ Method]The tests were carried out to study the effects of Bbn6, P01 and Bbn6 + P01 1 on the mortal strike of H. parallela in laboratory; According to the bioactivity of Bbn6 to P01 , a field experiment was set to comprehensively evaluate the integrated effect of P01 and Bbn6. [ Result] (i)The corrected mortality rate of Bbn6 to P01 was no more than 5 % (0. 34 % -4. 71 % ) during 24 - 120 hours; The corrected mortality rate of grubs treated by Bbn6 + P01 was significantly higher than that treated with P01 and Bbn6 alone; Treated grubs by Bbn6 + P01 , P01 and Bbn6 gained the corrected mortality rate with 96.67 % , 83.33 % and 30.00 % after 72 hours, (ii) In the field application, the treatment mixed with Bbn6 and P01 was significantly better than those treatments of P01 and Bbn6 alone on the tobacco stem circumference, maximum leaf and maximum leaf length. The insect reduce rates of Bbn6 + P01 , P01 and Bbn6 was 73.69 % , 49. 19 % and 45.05 % after 123 days. [ Conclusion] The synergism of Pellioditis spp. P01 and B. bassiana Bbn6 showed obviously the increasing effects on controlling tobacco White Grubs (H. parallela ). [ABSTRACT FROM AUTHOR]