(14 grams) into the Willamette Valley, except those that have tested negative for Black Leg and Black Rot. Note: because of a rule issued by Oregon, we cannot ship brassica packets larger than ½ oz. Major diseases: Black Rot, Alternaria Leaf Spot, Blackleg, Club Root, Downy Milldew, White MoldĬultural controls: avoid transplanting plants with yellow leaves or v-shaped lesions, crop rotation, destroy crop debris after harvest, avoid overhead irrigation, control weeds, allow for good air movement. Major pests: Cabbage Looper, Diamondback Moth, Imported CabbagewormĬultural controls: control cabbage-family weeds near crop fields, till under crop debris of early-season brassicas after harvest.Ĭultural controls: floating row covers, mulch with straw, time plantings for fall harvested crops only, crop rotation, perimeter trap cropping.Ĭultural controls: time planting to avoid first hatching, use row covers, control weeds.
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