. Insectos y ácaros beneficiosos. Ácaros;; Plagas de insectos. Figura 10. Algunos importantes Illinois mariquitas. A) C- 7, Coccinella septempunctata. B) La dama tzvospotted escarabajo, Adalia bipunctata. O el manchado de los escarabajos, dama Coleomegilla maculata. D) la apuñaló dos veces dama escarabajo, Chilocorus estigma. El estigma, figura lOd) es un depredador de muchas especies de insectos. Stethorus punctum, un importante predador de araña roja en huertos de manzanos en Michigan, Pennsylvania, y el oeste de Nueva York, se encuentra esporádicamente en Illinois. Los adultos son diminutas (3 mm), redonda, brillante, negro escarabajos. Tanto los adultos como los ángeles

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. Beneficial insects and mites. Mites; Pests; Insects. Figure 10. Some important Illinois lady beetles. A) C- 7, Coccinella septempunctata. B) The tzvospotted lady beetle, Adalia bipunctata. O The spotted lady beetle, Coleomegilla maculata. D) The twice-stabbed lady beetle, Chilocorus stigma. stigma, Figure lOd) is a predator of many species of scale insects. Stethorus punctum, an important predator of spider mites in apple orchards throughout Michigan, Pennsylvania, and western New York, is found sporadically in Illinois. Adults are tiny (3 mm), round, shiny, black beetles. Both adults and larvae feed on mites, and they are most often found where spider mite populations are high (15 or more mites per leaf). Adults overwinter in debris at the base of apple trees or in fields or wooded areas near orchards. Although Stethorus punctum is susceptible to standard rates of most orchard insecticides and miticides, adults are mobile and can fly into orchards after spray residues have declined. Ground Beetles (Family Carabidae) and Rove Beetles (Family Staphylinidae). Adult and larval ground beetles and rove beetles prey on a wide range of insects and are especially important as pre- dators of caterpillars and other soft-bodied insects in field crops, forests, and many other habitats. Together these two families of beetles include nearly 5,000 species that are widely distributed throughout North America. (See Figure 11.) Both ground beetles and rove beetles are commonly found under plant debris and beneath. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Henn, Tess; Weinzierl, Rick; University of Illinois at Urbana-Champaign. Cooperative Extension Service; Illinois. Natural History Survey Division. Urbana, Ill. : Office of Agricultural Entomology, University of Illinois at Urbana-Champaign, College of Agr