Biology. Cov ntoo thuv dawb tshwm sim thoob plaws sab hnub tuaj North America nyob rau hauv thaj tsam ntawm thawj tus tswv tsev cog, ntoo ntoo dawb (Pinus strobus). Qhov no weevil infests lwm pines thiab spruces, tshwj xeeb tshaj yog Norway spruce. Cov neeg laus overwinter nyob rau hauv khib nyiab hauv qab ntoo.
tus ntoo thuv dawb nyob qhov twg?
Dawb ntoo thuv weevils tshwm sim thoob plaws sab hnub tuaj North Americanyob rau hauv thaj tsam ntawm thawj tus tswv tsev cog, ntoo ntoo dawb (Pinus strobus). Qhov no weevil infests lwm pines thiab spruces, tshwj xeeb tshaj yog Norway spruce. Cov neeg laus overwinter nyob rau hauv khib nyiab hauv qab ntoo.
Dab tsi tua cov ntoo thuv dawb?
Kev puas tsuaj los ntawm cov ntoo thuv dawb tuaj yeem tiv thaiv tau los ntawm kev txau ntawm lub cev sab saud thiab cov terminals ntawm spruce thiab ntoo thuv thaum ntxov rau nruab nrab Lub Plaub Hlis thiab dua ob lub lis piam tom qab nrog cov khoom uas muaj bifenthrin, permethrin lossis cyfluthrinSiv cov khoom no ntawm tus nqi muab rau ntawm daim ntawv lo rau cov kab kab los yog borers.
Pab dawb ntoo zoo li cas?
Tus neeg laus yog cov kab xeb me me uas ntev li 4-6 hli. Nws muaj tsis xwm yeem zoo li thaj ua rau thaj xim av thiab cov nplai dawb ntawm lub tis pem hauv ntejNyob ze ntawm lub apex ntawm tis pem hauv ntej yog ib thaj dawb loj. Zoo li feem ntau cov weevils, tus neeg laus muaj ib tug ntev snout-zoo li tus beak uas me me antennae tshwm sim.
Yuav tua tsob ntoo?
Nws tsis zoo li yuav tua ntoo, tab sis nws tuaj yeem rhuav tshem lawv lub cev. Txawm hais tias dawb ntoo thuv weevils pub feem ntau ntawm kev loj hlob xyoo tas los, lawv qhov kev pub mis tuaj yeem tua tau ob lossis peb lub voj voog ntawm ceg. … Kev loj hlob tshiab feem ntau sprouts qis dua tus thawj coj tuag, tab sis kev puas tsuaj ua rau tsob ntoo zoo li qub.
