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31. Certain substituted benzylamino heterocyclic and heteroaryl derivatives have provided unexpected insecticidal and acaricidal activity.

32. This review deals with natural products possessing antifeedant and insecticidal properties from botanical origin recently.

33. D. insecticidal element: some actinomycetes produce antibiotics such as abamectin, sterilization element.

34. The use of arthropod pathogens like entomopathogenic fungi (fungi that kill insects), diatomaceous earth, insecticidal soaps and botanical insecticides are allowed under the standards.

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35. The decrease in insecticidal effect of ricinine after modification indicated that the cyanogens group played an important role in insecticidal effect of ricinine .

36. These compounds have relatively high insecticidal activities and with low levels of resistance.

37. It is toxic to almost all forms of life including humans. It has broad - spectrum insecticidal activity.

38. At the same time, KHm insecticidal activity, the strength of bactericidal effect of sodium humate than good.

39. The mode of action and the insecticidal properties of these three groups are reviewed as well.

40. Chemical constituent analysis showed that thioether compound might be one of insecticidal substances in A. sativum and A. cepa.

41. This thesis is to study the insecticidal effect of PC to aphids and Plutella xylostlla.