过于平凡
发表于 2025-3-28 14:50:42
Introduction to the Study of , as a Mosquito Control Agentn of improved strains and in the energy presently evident in this most interesting research area. We are all even more pleased that industry (Abbott Laboratories in the United States and the Biochem-Solvay group in Belgium) has decided to consider, seriously, the development of material for field use.
我不死扛
发表于 2025-3-28 21:29:29
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闲聊
发表于 2025-3-29 00:13:39
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SEMI
发表于 2025-3-29 07:06:01
Classification of , Strains and Comparative Toxicity to Mosquito Larvae, in 1989 more than 150 mosquito pathogenic isolates with various toxicity levels have become available. This has created problems in their identification and differentiation—first from the atoxic ., and second from each other within the toxic group.
Critical
发表于 2025-3-29 09:48:49
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Somber
发表于 2025-3-29 14:21:01
Electrochemical Properties of the Elements,e and spread of insecticide resistance in many species of vectors, the concern with environmental pollution, and the high cost of the new chemical insecticides make it apparent that vector control can no longer be safely dependent upon the use of chemicals.
CLAM
发表于 2025-3-29 17:17:29
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HIKE
发表于 2025-3-29 21:03:46
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languor
发表于 2025-3-29 23:53:06
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ITCH
发表于 2025-3-30 06:23:05
Michael Massengale,Elise Choe,Don E. Davis pests. However, the disadvantages of chemicals are that they persist for a long time in the environment; are hazardous to humans; and due to chemical longevity, genetically based resistance to the chemicals occurs. Consequently, the development of biological controls as an alternative means of pest control is desired.