nocturia 发表于 2025-3-30 09:51:13

http://reply.papertrans.cn/19/1874/187322/187322_51.png

种类 发表于 2025-3-30 13:25:14

Kindheit in der Wende — Wende der Kindheit?While any control short of eradication is not likely to prevent the eventual spread of the winter moth to other areas favorable to it, the actions of these parasites may reduce the rate of spread. Moreover, based on their demonstrated ability to disperse in their new environment, they are most likely to spread with their host.

集合 发表于 2025-3-30 18:31:17

Kinder und Kindheit in der Sozialstrukturd woodlands. The Insecta permeates this rich biotic matrix, forming an integral part of the intricate food chains and webs involved. A hundred or so of these insects are pests, but the vast majority are essential to man’s welfare. Among the latter are thousands of species of parasites and predators.

Constitution 发表于 2025-3-30 23:53:03

Der moralische Status der Kindheitn.), found in forests; and European red mite, . (Koch), a lecanium scale, . (L.), and codling moth, . (L.), commonly found as pests in orchards. These orchard pests apparently have reached North America from Europe since the apple was introduced early in the 17th century. They are well established, widely distributed species.
页: 1 2 3 4 5 [6]
查看完整版本: Titlebook: Biological Control; C. B. Huffaker (Professor of Entomology and Entomo Book 1971 Springer Science+Business Media New York 1971 biological.