I-Cruciferous Gall Midge

I-CRUCIFLOWER GALLMITE (Contarinia nasturtii) iyimpukane efinyelela ku-2 mm ubude, onsundu ngokuphuzi ngombala. Isibungu simhlophe noma siphuzi, sifinyelela ku-3 mm ubude. Izibungu overwinter emifeceni yobumba emhlabathini. Entwasahlobo, ngokuvamile ngoMeyi noma ekuqaleni kukaJuni, izimpukane zindiza ziphume futhi zizalele amaqanda amaningana kuma-axil amaqabunga naphakathi kwamaqabunga amancane phezulu amahlumela. Izibungu zichanyuselwa ngemva kwezinsuku ezingu-7-q0. Izibungu ezikhulile zingena emhlabathini ukuze zikhiphe izibungu. Isizukulwane sokugcina sezibungu overwinter emhlabathini. Izizukulwane ezi-2-3 ziyakhula ngonyaka.

Lolu hlobo lutholakala kwiklabishi, ukholifulawa nezinye izitshalo ze-cruciferous. Izibungu zidla amaqabunga angaphakathi, okwenza ukuthi ashube futhi avame ukubola. Izibungu ziphinde zilimaze i-cone yokukhula, ibangele ukulahlekelwa kwefihlekile ethule kanye ne-lateral, okuholela kumakhanda eklabishi amancane angu-4-5.

Iklabishi elimhlophe, iklabishi elibomvu, i-savoy iklabishi, i-cauliflower, i-broccoli

Izitshalo kufanele zifuthwe kusukela maphakathi noMeyi kuze kube yilapho amakhanda eqala ukugoqa, cishe ngezikhathi zamasonto onke. Izidakamizwa ezisebenzayo nezinconyiwe zokulwa ne-pharyngitis yi-Mospilan 20SP noma i-Karate Zeon 050CS.