Download e-book for kindle: Biological Control: (Cabi International) by C Vincent, M S Goettel, G Lazarovitz

By C Vincent, M S Goettel, G Lazarovitz

Organic regulate, the administration of pests by way of residing organisms, has an extended historical past of software to agriculture around the globe. notwithstanding, the potent use of invaluable organisms is restricted via environmental, criminal, and monetary regulations, forcing researchers to undertake more and more multi-disciplinary strategies to be able to installation profitable organic keep watch over courses. it really is this advanced approach, together with the approach and the social surroundings of the researcher in addition to the technological know-how being pursued, that this booklet seeks to catch. Chapters exhibit the studies of scientists from the preliminary look for appropriate keep an eye on brokers, to their unlock into ecosystems and at last to the precious results which reveal the nice luck of organic keep watch over throughout assorted agro-ecosystems. Drawing jointly ancient views and methods utilized in the improvement of organic keep an eye on in addition to outlining present debates surrounding terminology and differential thoughts, organic keep an eye on: a world standpoint can be a helpful source.

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A second lesson from this project is that populations, not species, are what get introduced. Populations within a single species can vary strongly in characters that affect them as biological control agents, including their climatic adaptations and host specificity. For example, in Western Europe, C. glomerata is predominantly a parasitoid of P. brassicae, attacking P. rapae only occasionally. But in Japan, where P. rapae and C. glomerata occur but P. brassicae was absent until its recent invasion, C.

In Africa, more than 160,500 mite specimens representing 79 genera and 170 species in 33 families were collected from 496 host plant species in 26 countries over a 10-year period (Yaninek and Hanna, 2003). By design, the largest group of specimens belonged to the Phytoseiidae, which were represented by 18 genera and 103 known and 26 undescribed species from 402 host plant species. This led to descriptions of 20 new species and 63 re-described species found in Africa, and 16 new species and 68 re-described species found in South America, which continues today (G.

Goettel and G. Lazarovits) Parasitoids to Control the Imported Cabbageworm 21 lessons for how classical biological control should be done to meet modern standards. In this chapter I focus on three main questions: (i) did the project work? Is there evidence that the pest’s density was reduced; (ii) did parasitoids introduced against P. rapae harm native butterfly populations; and (iii) if the project were being done fresh today, could the choices of which species of parasitoid to introduce and what source locations to collect them from be improved?

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