The effect of various tillage and herbicide practices on arthropod populations occurring on various field crops and the possible effects of Herbicide Resistant Crops (HRC's) on target and nontarget organisms are an area receiving widespread interest and concern. Reseach has show different tillage and rotation practices can influence arthropod populations in various ways. However, little work has been done to study the effects associated with HRC's. HRC's may indirectly impact arthropod populations by affecting various organisms that make up the food chain in an agroecosystem. In addition, the indirect effect of different weeds may also affect the pest and beneficial arthropods occurring there. All of these factors need to be studied in detail in order to ascertain the overall total effect of a particular management system. These interactions were evaluated by assessing arthropod populations in three target areas (above ground, soil surface, and ground dwelling) within a Roundup Ready corn and soybean system.
Keywords: Tillage, Roundup Ready Crops
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