M'madera ambiri a magulu a ku United States ndi amodzi mwa malo ofala komanso owopsa kwambiri. Mitundu yosiyanasiyana ya mabakiteriya idzaika mazira awo mu nthaka ya udzu ndi minda yomwe imakhala ndi mbozi yomwe imadyetsa mizu. Chofala kwambiri ku US ndi kachilomboka kakang'ono ka Japan , koma ena angaphatikizepo kumpoto wakuda wa kumpoto, kachirombo kakang'ono ka ku Asia, kachilombo ka European, green June kachilomboka, May ndi June kafadala, ndi kumadzulo kwa nyongolotsi.
Grub Identification
- Grubs ndi zoyera zoyera ndi mutu wa bulauni.
- Iwo ali ndi matupi ofewa kuyambira 1/16 inchi mpaka 1 1/4 inchi yaitali malingana ndi siteji ya chitukuko.
- Ambiri ali ndi miyendo isanu ndi itatu yomwe yakula bwino, kupatula njere zobiriwira za June.
- Mukasokonezeka, grubs idzapangika ngati C.
Zizindikiro za Zomera ndi Kuwonongeka Kwawo
- Zakudya za grubs pa mizu ya udzu, zomwe zimachititsa udzu kukhala wofiira, wofiira ndi kufa. Mapanga a udzu wakufa akhoza kukhala chizindikiro cha kubereka. Kuti mudziwe ngati magupa alipo, sungani kumbuyo kwa dera lomwe lawonongeka ndikuyang'anirani maguvu . Chifukwa maguvu akhala akudyetsa ndi kuwononga mizu ya udzu, chigambacho chidzachoka mosavuta kuchoka ku nthaka yomwe ili pansipa ngati iwonongeke. Zomerazi zimapezeka pamphepete mwa chigamba chakufa pamene akupitiriza kudyetsa mizu ya udzu wamoyo.
- Nyama zakutchire kawirikawiri zimadya pa maguvu, motero kuwona kwa skunks, raccoon s, kulira kapena otsutsa ena kukumba mu udzu, makamaka usiku, kukhoza kusonyeza kuti magalasi akutsitsa udzu.
- Chifukwa mabala a udzu wakufa angabwere chifukwa cha zinthu zambiri (mwachitsanzo, kuyamwitsa kwa pet)
Kupewa ndi Kuteteza kwa Grubs
- Chitetezo chabwino kwambiri ndi kuyang'anitsitsa kwa udzu ndi malo monga chilimwe chikupita patsogolo. Ngati dera la udzu limawoneka ngati likuwombera kapena liwunikira, onetsetsani kuti grubs (monga taonera pamwambapa). Mankhwala ophera tizilombo toyambitsa matenda omwe amagwiritsidwa ntchito m'deralo panthawiyi akhoza kupha nkhumba kuti zisawononge kukula ndi kuswana. (Onani zowononga tizilombo m'munsimu.)
- Njira yoyamba yolamulira ndi kudziwika kwa mitundu ya grubu monga zowonongeka kwa zamoyo ndi zamoyo zina. Mwachitsanzo, eni nyumba amatha kugula matenda a bakiteriya omwe amachititsa kuti magulu a kachilomboka apitirire ku Japan, koma izi ndizogawenga zokhazokha zomwe zimakhala ndi zotsatira zambiri. Choponderezeka cha bakiteriya ndi chakuti zingatenge zaka zisanu kuti zikhazikitsidwe, koma zikhoza kutaya mphamvu ngati tizilombo tigwiritsidwa ntchito m'deralo.
- Njira ina yowonongeka kwa grubs ndiyovomerezedwa ndi University of Minnesota: Gwiritsani ntchito spreader kufalitsa tizilombo togwiritsidwa ntchito pa nthaka kuyambira pakati pa mwezi wa July mpaka kumapeto kwa September. Ngati, patatha masiku khumi, maguvu adakalipo, akatswiri a yunivesite amalimbikitsa kugwiritsa ntchito mankhwala osiyana. (Onani zowononga tizilombo m'munsimu.)
Zitetezo za mankhwala : Ngati mukugwiritsa ntchito mankhwala ophera tizilombo tiwerenge malemba onse kapena machenjezo oti tizigwiritsa ntchito; gwiritsani ntchito mankhwala ophera tizilombo omwe amawatchula kuti agwiritsidwe ntchito (mwachitsanzo, mapepala achijeremani kapena grubs, chomera chimene mankhwalawa ayenera kugwiritsidwa ntchito, ntchito yogwiritsa ntchito nthaka, etc.); tsatirani malangizo onse; ndi kusunga ndi kusunga mankhwala ophera tizilombo mosamala kuchoka kwa ana ndi ziweto. Pewani kugwiritsa ntchito mankhwala ophera tizilombo m'mphepete mwa mphepo komanso / kapena pamene njuchi zikudya.