CRUCIFLOWER GALLMITE (Contarinia nasturtii) ndi ntchentche yotalika mpaka 2 mm, yachikasu-bulauni mumtundu. Mphutsi ndi yoyera kapena yachikasu, mpaka 3 mm kutalika. Mphutsi overwinter mu zikwa dothi m'nthaka. M'chaka, nthawi zambiri mu May kapena kumayambiriro kwa June, ntchentche zimawulukira kunja ndikuyikira mazira angapo mu axils wa masamba ndi pakati pa masamba aang'ono pamwamba pa mphukira. Mphutsi zimaswa pambuyo pa masiku 7-q0. Mphutsi zazikulu zimayenda m'nthaka kuti zibereke. Mbadwo wotsiriza wa mphutsi overwinter m'nthaka. Mibadwo 2-3 imakula pachaka.
Zizindikiro
Mtundu uwu umapezeka pa kabichi, kolifulawa ndi zomera zina za cruciferous. Mphutsizi zimadya masamba apakati, zomwe zimapangitsa kuti akhwime ndipo nthawi zambiri amawola. Mphutsizi zimaononganso kachulukidwe ka kakulidwe, kuchititsa kuti masamba ogona komanso otsalira awonongeke, zomwe zimapangitsa kuti pakhale tinthu tating'onoting'ono ta kabichi 4-5.
Host zomera
Kabichi woyera, kabichi wofiira, savoy kabichi, kolifulawa, broccoli
Njira zowongolera
Zomera ziyenera kupopera mbewu kuchokera pakati pa Meyi mpaka mitu itayamba kupindika, pafupifupi sabata iliyonse. Mankhwala othandiza komanso ovomerezeka othana ndi pharyngitis ndi Mospilan 20SP kapena Karate Zeon 050CS.
Galasi
