Abstract

Barren soil borders, weed border treatments, and caged barren soil were evaluated for their effect on movement of the twospotted spider mite, Tetranychus urticae Koch, into peanut (Arachis hypogaea L.) fields. In field cage tests when a 3, 4.5, or 6 m strip of barren soil separated a source of mite-infestation from initially mite-free peanut, mite damage to peanut was inversely related to the distance of barren soil crossed. In uncaged field tests, similar barren soil borders did not prevent mite movement into peanut fields, however, the number of mites were inversely related to the distance from the field border. There were no significant differences among weed border treatments and total numbers of mites entering peanut fields over time. There were, however, differences among weed border treatments on early mite movement and establishment trends into peanut fields. Mowing weed borders significantly increased the number of aerially dispersing twospotted spider mites within the adjacent peanut field.

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Keywords: Twospotted spider mite, Tetranychus urticae Koch, peanut, Arachis hypogaea L, Groundnut, Cultural control, Movement, Dispersal, Wind dispersal

How to Cite:

Boykin, L. & Campbell, W. & Nelson, L., (1984) “Effect of Barren Soil Borders and Weed Border Treatments on Movement of the Twospotted Spider Mite into Peanut Fields^1,2,3”, Peanut Science 11(1), p.52-55. doi: https://doi.org/10.3146/i0095-3679-11-1-16

Author Notes

¹Paper No. 8709 of the Journal series of the N.C. Agric. Res. Serv. Research supported by the North Carolina Peanut Growers Association.

²Portion of a thesis submitted for partial fulfillment of the requirements for the Ph.D. degree, North Carolina State University.

³The use of trade names in this publication does not imply endorsement of the products named or criticisms of similar ones not mentioned.