爱哭
发表于 2025-3-28 16:44:05
Anja Sieber Egger,Ursina Jaegern of alternative strategies and tactics. This comparison must be on a cost-benefit basis from a long-term, as well as short-term view (the long-term view essentially is that the practice must not detract from the crop production or profit potential of the area in which it is used; i.e., it must be both ecologically and economically sound).
Prostatism
发表于 2025-3-28 20:23:45
Merle Hummrich,Saskia Terstegenher republics, egg parasites, . spp., began to be used widely against many harmful Lepidoptera. Because of the labor and expense of using entomophages and the successes of chemical methods in the 1950’s, work was conducted on a small scale by individual researchers and small production laboratories.
生意行为
发表于 2025-3-28 23:52:51
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Charlatan
发表于 2025-3-29 07:03:36
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HAIRY
发表于 2025-3-29 09:04:32
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惰性女人
发表于 2025-3-29 14:45:21
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Nefarious
发表于 2025-3-29 16:25:40
Augmentation of Natural Enemies in the People’s Republic of Chinaiven to selective pesticide technology to protect them. The development of pest resistant crops as a central or high priority component has had little active or organized support, although varieties of some crop species resistant to a variety of pests were reported (NAS, 1977).
机警
发表于 2025-3-29 20:57:39
Augmentation of Natural Enemies for Control of Plant Pests in the Western Hemisphereugh in-field reproduction of the released species. However, the use of inundative releases to describe all other augmentative releases may be misleading since by definition inundative means “to flood or to overwhelm by great numbers.”
易碎
发表于 2025-3-30 01:03:43
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construct
发表于 2025-3-30 05:11:16
Berrin Özlem Otyakmaz,Manuela Westphalattacked by . were collected and put into containers divised in such a way that they allowed for the emergence of Ichneumonid parasites and prevented the release of adult pests. Other examples of the use of native species are listed and analysed by Marchal (1907).