Diflubenzuron selective insecticide rau kab tsuag kab mob

Khoom piav qhia

Cov tshuaj chlorinated diphyenyl compound, diflubenzuron, yog ib qho tshuaj tua kab.Diflubenzuron yog benzoylphenyl urea siv rau hauv hav zoov thiab teb cov qoob loo los xaiv tswj kab thiab kab mob.Lub hom phiaj tseem ceeb ntawm hom kab yog gypsy npauj, hav zoov tsev pheeb suab caterpiller, ob peb nplooj ntsuab noj npauj, thiab boll weevil.Nws kuj yog siv los ua cov tshuaj tua kab mob larvae hauv kev ua haujlwm nceb thiab tsiaj tsev.Nws yog tshwj xeeb tshaj yog zoo tiv thaiv kab larva, tab sis kuj ua raws li ib tug ovicide, tua kab.Diflubenzuron yog lub plab thiab tiv nrog tshuaj lom.Nws ua los ntawm inhibiting zus tau tej cov chitin, ib tug compound uas ua rau cov txheej txheej ntawm cov kab nyuaj thiab yog li cuam tshuam nrog kev tsim ntawm kab cuticle los yog plhaub.Nws yog siv rau cov av muaj kab mob thiab yuav tua cov fungus gnat larvae rau 30-60 hnub los ntawm ib daim ntawv thov.Txawm hais tias nws yog tsom rau cov kab mob fungus gnat larvae, kev saib xyuas yuav tsum tau siv rau hauv kev siv nws vim nws muaj tshuaj lom rau feem ntau cov dej invertebrates.Nws tsis muaj tshuaj lom rau cov neeg laus kab, tsuas yog kab larvae cuam tshuam.Diflubenzuron tuaj yeem ua rau muaj mob loj heev rau cov nroj tsuag hauv tsev neeg spurge thiab qee hom begonia, tshwj xeeb tshaj yog poinsettias, hibiscus thiab reiger begonia thiab yuav tsum tsis txhob siv rau cov nroj tsuag no.

Diflubenzuron muaj qhov tsis muaj zog hauv av.Tus nqi ntawm degradation nyob rau hauv cov av yog xav tau nyob ntawm seb qhov luaj li cas ntawm diflubenzuron.Nws yog degraded sai heev los ntawm cov txheej txheem microbial.Ib nrab-lub neej hauv av yog 3 mus rau 4 hnub.Nyob rau hauv cov xwm txheej, diflubenzuron muaj kev txav mus los tsawg heev.Tsawg heev diflubenzuron yog absorbed, metabolized, los yog translocated nyob rau hauv cov nroj tsuag.Cov seem ntawm cov qoob loo xws li txiv apples muaj ib nrab-lub neej ntawm 5 mus rau 10 lub lis piam.Ib nrab-lub neej nyob rau hauv oak nplooj litter yog 6 mus rau 9 lub hlis.Diflubenzuron txoj hmoo hauv dej nyob ntawm pH ntawm cov dej.Nws degrades sai tshaj plaws hauv dej alkaline (ib nrab lub neej yog 1 hnub) thiab qeeb qeeb hauv cov dej acidic (ib nrab lub neej yog 16+ hnub).Lub halflife hauv av yog nruab nrab ntawm plaub hnub thiab plaub lub hlis, nyob ntawm seb qhov luaj li cas.