Evaluations of mulches and row covers to delay virus diseases and their effects on yield of yellow squash
1989
Conway, K.E. | McCraw, B.D. | Motes, J.E. | Sherwood, J.L.
Various mulches (white polyethylene, reflective aluminum, and aluminum-painted black polyethylene) used either singly or in combination with row covers (Vispore or Reemay) were evaluated for their effects on yield and delay of virus disease development in several cultivars of yellow squash (Cucurbita pepo, cv "Lemondrop L", "Multipik," or "Dixie"). Evaluations were made at three Oklahoma locations during three growing seasons. Compared to bareground controls, all mulch treatments provided yield increases (either numbers or weight of fruits) and delays in virus symptom onset when a mechanically inoculated virus source was present. Reflective aluminum mulch provided significant increase in yield and delay of symptom onset and fewer virus infected plants compared to white polyethylene when disease was severe. When an inoculated virus source was present, covers in combination with mulches were more effective than mulches alone in the delaying disease onset and increasing yield.
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