Titlebook: Biological Control; C. B. Huffaker (Professor of Entomology and Entomo Book 1971 Springer Science+Business Media New York 1971 biological.

incisive

https://doi.org/10.1007/978-3-322-92642-5 predators and parasites. The following chapters continue the same theme but with greater emphasis on integrated control and the role biological control plays in the application of integrated control in pest management.

狼群

厚顏無(wú)恥

978-1-4615-6530-7Springer Science+Business Media New York 1971

流浪者

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).

Haphazard

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 involved.

墻壁

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 rhodesgrass scale was begun in 1961.

Epidural-Space

符合你規(guī)定

Abnormal

Problemfelder der Kindheitsforschungnthetic and modern. Pesticides emerged rather slowly and in a crude form out of the nineteenth century. Then with surprising suddenness they evolved into compounds having spectacular toxicity. They proliferated enormously. They spread over the entire globe. They are characteristic of our time and ha

Allowance