Graphite
发表于 2025-3-30 08:57:01
argely resultant disturbances and pollution of the environment in which man must live and produce the things he needs, are forcing him to search for means of solving the first problem without intensifying the latter. Food production requires adequate assurance against the ravages of insects. In the
分开如此和谐
发表于 2025-3-30 15:08:48
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GOUGE
发表于 2025-3-30 18:38:04
The Pesticide Syndrome—Diagnosis and Suggested Prophylaxisinto compounds having spectacular toxicity. They proliferated enormously. They spread over the entire globe. They are characteristic of our time and have confronted us with another environmental crisis of this decade, outstanding in terms of massiveness, extensiveness and rate of change.
漂浮
发表于 2025-3-30 22:38:28
https://doi.org/10.1007/978-3-658-43148-8lifornia. Subsequently, the same predator achieved complete biological control of the cottony cushion scale in 25 additional countries, and a substantial degree of control in four other countries (see DeBach, ed., 1964, Chapter 24).
Entirety
发表于 2025-3-31 02:56:26
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Spangle
发表于 2025-3-31 06:14:14
Datenbasis und methodisches Vorgehenegulation, and (c) with the damping processes either inherent or extrinsic to enemy action but required as supplemental feature(s) in maintaining stability. The role of natural enemies is also discussed relative to recent challenges and indictments of the supposed theory and practices of biological control practitioners.
grandiose
发表于 2025-3-31 09:50:19
Theoretische Ansätze zum Wandel von Familieg outright death, pathogens may interfere with insect development, alter reproduction, lower insect resistance to attack by parasites, predators, and other pathogens and influence the susceptibility of insects to control by chemical insecticides or other artificial methods.