Identification: Adult billbugs yog dull grey to black beetles, ¼ mus rau ½ nti ntev, nrog lub snout lossis daim nqi. Billbug larvae yog dawb, legless, 5/8-nti ntev, humpbacked grubs nrog lub taub hau daj rau xim av, uas yog ib qho nyuaj ntawm kev ntxhib los mos tshaj lub cev dawb.
bluegrass Billbug yog dab tsi?
Bluegrass billbug (Sphenophorous parvulus) yog a beetle, belongs rau tsev neeg Curculionidae. Nws yog ib qho kab noj hauv paus uas pom ntawm cov nyom thiab turf nyom. Billbugs tuaj yeem pom nyob ze ntawm txoj kev taug kev, kev tsav tsheb thiab lwm qhov chaw ntawm cov cua sov. Kev puas tsuaj feem ntau pom thaum Lub Xya Hli thiab Lub Yim Hli.
Billbug zoo li cas?
Billbug larvae yog dawb nrog liab-xim av taub hau thiab saib zoo ib yam li dawb grubs, lwm yam kab tsuag kab. Txawm li cas los xij, billbug larvae tsis muaj ceg; dawb grubs ua. … Billbug-kev puas tsuaj nyom tawg tawm ntawm cov av kab thiab feem ntau yog nrog los ntawm ntau cov hmoov sawdust zoo li excrement.
Kuv yuav paub li cas yog tias kuv muaj kab mob?
Yuav kom kuaj tau cov kab kab kab mob tiag tiag, rub cov stems tuag ntawm cov nyom cuam tshuam nce toj Yog tias cov stalks tawg yooj yim, cov stems hollowed, thiab muaj cov khoom zoo li sawdust tam sim no, Billbugs yog qhov ua rau. Koj kuj tuaj yeem pom cov kab kab laus dub lossis grey raws txoj kev taug kev thiab kev tsav tsheb thaum hnub ci.
Bluegrass Billbug Life Cycle
