Vegetables / Maraîchage : Crucifers and Lettuce: Cabbage, Chinese Cabbage (Pe Tsaî, Bok Choy), Salad Aphids: Cabbage aphid Use of that attract aphid parasites and Organically “habitat plantings” (flowering perennial plants) (Brevicoryne brassicae) and predators. accepted other species (very significant) insecticides Carefully manage nitrogen levels so that they are neither too high (which significantly attracts include those aphids) or too low (which impedes plant growth). containing Natural enemies that can be attracted to fields with habitat plantings include aphid and syrphid insecticidal soap, flies, lacewings, and the predaceous midge, minute pirate bugs, big-eyed bugs, lady beetles, soldier beetles, and parasitic wasps like Diaeretiella rapae. neem (EAU DE In some humid areas there are outbreaks of naturally existing fungi that cause epidemics NEEM). among aphid colonies. Use synthetic When plants are young and leaf cupping has not yet occurred, high pressure overhead sprinkler pesticides irrigation dislodges aphids. containing Inter-planting with clover (as a reduces aphid populations. “living mulch”) acetamiprid Use trap crops: Plant mustards or collards on field margins or inter-planted and destroy these plants once heavily infested. (recommended for use during vegetative growth, not flowering). Flea beetles (Systena species Parasitoids like the Braconid wasp Microcotonus vittage parasitize and kill adult flea beetles. Use repellents and species) (very containing herbal Use living mulches or polycultures. Phyllotreta significant) extracts of garlic, Trap crops: Interplant field and margins with giant mustard or radish and destroy these plants onion, and mint. once heavily infested. Use of organic Floating mesh or screen row covers such as Reemay can be used to cover seedlings and botanical provide a barrier to adult beetles. insecticides such White and yellow sticky traps placed every 15 to 30 feet of row. as Sanitation: Clean up and (do not compost weeds that have flowered and set seed) plant debris from field and around field. neem (EAU DE NEEM). Use of organic insecticidal soap.
Vegetables / Maraîchage : Crucifers and Lettuce: Cabbage, Chinese Cabbage (Pe Tsaî, Bok Choy), Salad Aphids: Cabbage aphid (Brevicoryne brassicae) and other species (very significant) Use of “habitat plantings” (flowering perennial plants) that attract aphid parasites and predators. Carefully manage nitrogen levels so that they are neither too high (which significantly attracts aphids) or too low (which impedes plant growth). Natural enemies that can be attracted to fields with habitat plantings include aphid and syrphid flies, lacewings, and the predaceous midge, minute pirate bugs, big-eyed bugs, lady beetles, soldier beetles, and parasitic wasps like Diaeretiella rapae. In some humid areas there are outbreaks of naturally existing fungi that cause epidemics among aphid colonies. When plants are young and leaf cupping has not yet occurred, high pressure overhead sprinkler irrigation dislodges aphids. Inter-planting with clover (as a “living mulch”) reduces aphid populations. Use trap crops: Plant mustards or collards on field margins or inter-planted and destroy these plants once heavily infested. Organically accepted insecticides include those containing insecticidal soap, (EAU DE NEEM). Use synthetic pesticides containing acetamiprid (recommended for use during vegetative growth, not flowering). Flea beetles (Systena species and Phyllotreta species) (very significant) Parasitoids like the Braconid wasp Microcotonus vittage parasitize and kill adult flea beetles. Use living mulches or polycultures. Trap crops: Interplant field and margins with giant mustard or radish and destroy these plants once heavily infested. Floating mesh or screen row covers such as Reemay can be used to cover seedlings and provide a barrier to adult beetles. White and yellow sticky traps placed every 15 to 30 feet of row. Sanitation: Clean up and (do not compost weeds that have flowered and set seed) plant debris from field and around field. Use repellents containing herbal extracts of garlic, onion, and mint. Use of organic botanical insecticides such as (EAU DE NEEM). Use of organic insecticidal soap. neem neem
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