@article{margolies_kennedy_vanduyn_1985, title={EFFECT OF 3 SOIL-APPLIED INSECTICIDES IN FIELD CORN ON SPIDER-MITE (ACARI, TETRANYCHIDAE) PEST POTENTIAL}, volume={78}, ISSN={["0022-0493"]}, DOI={10.1093/jee/78.1.117}, abstractNote={In 1982, a field survey in corn indicated a relationship between use of terbufos as a soil-applied treatment at planting and the incidence of heavy infestations of Tetranychus urticae Koch in treated corn and adjacent peanut fields. In 1983. field studies found enhanced T. urticae population growth in corn treated with terbufos or aldicarb but not in carbofuran-treated corn. The implications of these results for the pest potential of mites on other crop hosts in a corn/peanut agroecosystem are discussed.}, number={1}, journal={JOURNAL OF ECONOMIC ENTOMOLOGY}, author={MARGOLIES, DC and KENNEDY, GG and VANDUYN, JW}, year={1985}, pages={117–120} } @article{margolies_kennedy_1985, title={MOVEMENT OF THE 2-SPOTTED SPIDER-MITE, TETRANYCHUS-URTICAE, AMONG HOSTS IN A CORN-PEANUT AGROECOSYSTEM}, volume={37}, ISSN={["0013-8703"]}, DOI={10.1111/j.1570-7458.1985.tb03452.x}, abstractNote={AbstractA 3 year study of spider mites in a corn‐peanut agroecosystem indicated that the persistance and pest status of mite populations depended on dispersal among a succession of temporarily suitable cultivated and non‐cultivated hosts. In the spring, mites crawled from overwintering sites in vegetation along field margins into both peanut and corn fields, but became established only in corn. Initiation of aerial dispersal from corn was coincident with and appeared dependent upon mites moving to the top of the corn canopy, where they were exposed to the wind. Mites were first observed in peanut immediately following the onset of aerial dispersal from corn, and these aerial dispersers were the primary source of subsequent mite infestations in peanut. As populations grew in peanut, mites dispersed into vegetation along peanut field margins and became the nucleus of populations which persisted over the winter. This pattern of host utilization was reinitiated in the spring if corn was planted adjacent to infested field borders. This pattern commonly occurs since corn is planted following peanut in the predominant crop rotation sequence in this area.}, number={1}, journal={ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA}, author={MARGOLIES, DC and KENNEDY, GG}, year={1985}, pages={55–61} } @article{margolies_kennedy_1984, title={POPULATION RESPONSE OF THE TWOSPOTTED SPIDER-MITE, TETRANYCHUS-URTICAE, TO HOST PHENOLOGY IN CORN AND PEANUT}, volume={36}, ISSN={["0013-8703"]}, DOI={10.1111/j.1570-7458.1984.tb03426.x}, abstractNote={AbstractIn northeastern North Carolina, outbreaks of Tetranychus urticae Koch on commercial corn and peanut plantings were observed to coincide with flowering and fruiting of the crop host. In greenhouse studies, when equal mite numbers were started on plants in either vegetative or reproductive growth stages, populations increased significantly more after 3–4 weeks on reproductive plants of both corn and peanut. This direct response of mite populations to differences in plant phenology appears to be an important component in the population dynamics of T. urticae. The importance of this effect in understanding mite outbreaks on corn and peanut is discussed, especially in reference to the corn‐peanut agroecosystem in North Carolina.}, number={2}, journal={ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA}, author={MARGOLIES, DC and KENNEDY, GG}, year={1984}, pages={193–196} } @article{margolies_lampert_kennedy_1984, title={SAMPLING PROGRAM FOR THE TWOSPOTTED SPIDER-MITE (ACARI, TETRANYCHIDAE) IN PEANUT}, volume={77}, ISSN={["0022-0493"]}, DOI={10.1093/jee/77.4.1024}, abstractNote={Utilizing data collected over 2 years, a sampling program for twospotted spider mites, Tetranychus urticae Koch, in peanuts was developed around an action threshold and was designed to be integrated into current peanut scouting programs directed against other insects, weeds, and pathogens. Three leaves per row-meter were found to be the most efficient sample size per site. To simplify sampling and to reduce sampling time, a procedure based on the frequency of occurrence of sample counts was devised where no more than five adult mites have to be counted at any site. By reducing sampling time, it becomes practical to sample at more sites, which increases the reliability of mite density estimates.}, number={4}, journal={JOURNAL OF ECONOMIC ENTOMOLOGY}, author={MARGOLIES, DC and LAMPERT, EP and KENNEDY, GG}, year={1984}, pages={1024–1028} }