短暂
发表于 2025-3-21 18:32:27
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江湖骗子
发表于 2025-3-21 22:07:58
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brassy
发表于 2025-3-22 02:46:42
The Adaptability of Introduced Biological Control Agentsuitable in its direct effects on development, survival, and reproduction of the new natural enemy; it must also be suitable in its indirect effects on life cycle synchrony between enemy and host. (Flanders, 1940; Elton, 1958).
Myosin
发表于 2025-3-22 05:09:34
The Use of Models and Life Tables in Assessing the Role of Natural Enemiesation ecology. Although natural enemies have been successfully used for the “biological control” of insect pests, the properties of these animals have neither been sufficiently well known beforehand to forecast the degree of success, nor have studies after the introduction revealed the mechanisms in
离开真充足
发表于 2025-3-22 10:14:24
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intuition
发表于 2025-3-22 15:51:56
The Biological Control of Weeds by Introduced Natural Enemiesnts which subsequently become “weeds.” In the United States the losses caused by alien and native weeds are believed to equal the combined losses from insects and diseases and to rank second only to those caused by soil erosion (Saunders . King, 1966). For the decade ending in 1960, this meant an an
Yag-Capsulotomy
发表于 2025-3-22 18:18:38
Biological Control of Coccids by Introduced Natural Enemiescess in the history of biological control was achieved against a coccid pest, the cottony cushion scale, . Maskell, in California in the late 1880’s. A predatory ladybeetle, . (Mulsant), introduced from Australia, was credited with the rapid, complete and permanent control of this serious pest in Ca
Oversee
发表于 2025-3-23 00:47:55
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cuticle
发表于 2025-3-23 02:45:36
The Biological Control of the Winter Moth in Eastern Canada by Introduced Parasites, into the eastern seaboard of North America. A serious defoliator of hardwoods, and having a natural range that includes most of Europe and parts of Asia, the insect is capable of spreading across North America. But it has been effectively controlled at its point of entry by the deliberate introduc
用树皮
发表于 2025-3-23 07:29:45
Biological Control of Rhodesgrass Scale by Airplane Releases of an Introduced Parasite of Limited Di insect has been found infesting 94 species of grasses in North America (Chada and Wood, 1960; Schuster, 1967), some of which it affects severely. Introduction of the scale parasite, .. (Rao), from India was made in 1959 (Dean .., 1961). Evaluation of this parasite in Texas as a control agent for rh