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A material useful for the mitigation, control, or elimination of plants or animals detrimental to human health or economy. Algicides, defoliants,...
Nematodes are one of the most abundant groups of multicellular organisms in the biosphere, occurring in all habitats and ecosystems. They are...


= Encyclopedia Article; = Research Update
Figure 1.Root-knot nematodes. (a) Vermiform plant-parasitic nematodes from a soil sample. The stylet, or feeding spear, characterizes “dagger” nematodes. The juvenile is the infective stage. (b) Highly magnified head. (c) Adult, pear-shaped female on a pinhead. (Courtesy of J. D. Eisenback)
From update 'Pest management'
Figure 2.Severe damage to soybean, involving stunted plants and patchy growth pattern, caused by a combination of the Columbia lance and sting nematodes. (Courtesy of S. R. Koenning)
From update 'Pest management'
Figure 3.Comparison of the growth of soybean-cyst- resistant soybean (four rows at upper left and four rows at lower right) to poor growth of susceptible soybeans (left foreground and upper right).
From update 'Pest management'
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