Dziwani mdani wanu
Dzina
Iris borer, Macronoctua onusta
Mayendedwe amoyo
Iris borer moths amaika mazira awo pa masamba a irises kumapeto kwa chilimwe ndi oyambirira kugwa. Mazira amawongolera pa masamba akale ndipo amawuluka mumasika ngati mbozi ing'onoing'ono yomwe imalowa m'mamasamba atsopano. M'nyengo yonse yotentha, amayenda ulendo wopita ku rhizome , kukula mpaka pafupifupi masentimita ataliatali. Panthawi imene akula msinkhu, amayamba kulowa mu rhizome.
Akakhala okonzeka kuphulika, amachoka kunthaka kuti akafufuze m'nthaka yozungulira. Chakumapeto kwa chilimwe, amaoneka ngati njenjete, ndipo kayendetsedwe kake kamayambiranso.
Zizindikiro za Iris Borer
Zizindikiro zoyamba za kuwonongeka kwa iris ndi zovuta kuzindikira pokhapokha mutadziwa zomwe mungafune. Kutsegula kudutsa masamba omwe amawoneka madzi ndi chizindikiro chotsimikizika cha iris borers. Ngati nsonga za masambawo zikutembenukira chikasu ndikuyamba kuyang'ana wakufa, ndicho chizindikiro china. Ndipo, ngati tsinde la tsinde lakhala lachikasu ndi la mushy, ndipo liri ndi fungo loyipa, iwo alowa mu rhizome ndi kuvunda yalowa. Ngati mukukumba irises kugawanika kapena kusuntha, mukhoza kuona mabowo mu rhizomes komanso.
Zotsatira pa Irises
Nthawi zina, chomeracho chidzakhala chodabwitsa kuti chikhalebe ngati zowola sizinayambe. Mwachidziwikire, zidzasintha pang'ono, kapena ayi. Nthawi zambiri, sikuti tili ndi mwayi ndipo mbozi imabweretsa mavuto aakulu kwambiri moti rhizome imatha kwathunthu.
Organic Control kwa Orisuka a Iris
Yang'anirani zomera zanu pafupi ndi April ndi May. Mukayamba kuona zizindikiro zowonongeka, tanizani masamba omwe athandizidwe pansipa pomwe kuwonongeka kumachitika. Mbozi, akadali yaying'ono, idzalowetsedwa mkati mwa gawo limene mwachotsa, ndipo mukhoza kuwononga. Ngati mukuwona zowola m'munsi mwa phesi, dulani mapiritsi kuti muwayese.
Ngati mukuona kuti mukulowera mu rhizome koma simukudziwa ngati malirewo akadali mkati, soak the rhizome in water. Mitsuko idzagwa. Yambani mzerewu. Ngati kuwonongeka sikuli koipa, dulani malo owonongeka, musiyeni kudula kwa maola angapo, ndikubwezeretsanso.
Kupewa
Mfungulo apa ndi wodetsedwa. Ngati palibe masamba otsala omwe mazira angapitirirepo, sipangakhale mbozi yomwe ingayesane nayo. Nthawi zonse muchotse mapesi akale ndi masamba omwe zomera zitagunda ndi chisanu. Ngati Iris borer ndi vuto losalekeza, ganizirani mitundu yolimbana. Ngakhale nthenda ya iris imatha kulimbana ndi mtundu uliwonse wa irises, sizikuvutitsa ndi irises ya Siberia, chifukwa mitengoyi imabzalidwa kwambiri mu nthaka.