Hauv paus-knot nematodes yog cov kab mob loj hauv av ntawm txiv lws suav, txiv tsawb, txiv hmab txiv ntoo, txiv tsawb, dib thiab lwm yam qoob loo. Vim tias cov hauv paus-knot nematodes feem ntau ua mob rau cov hauv paus hniav, lawv tsis muaj cov tsos mob tshwm sim thaum ntxov ntawm qhov tshwm sim thiab tuaj yeem yooj yim tsis meej pem nrog cov khoom noj tsis txaus. Thaum pom cov tsos mob tshwm sim, kev tiv thaiv thiab kev kho mob nyuaj heev. Qhov teeb meem tshwm sim los ntawm cov hauv paus-knot nematodes rau cov nroj tsuag yog qhov thib ob tsuas yog cov kab mob fungi thiab ntau dua qhov kev puas tsuaj los ntawm cov kab mob thiab kab mob. Muaj ntau cov tshuaj tua kab rau kev tswj cov hauv paus-knot nematodes. Qhov twg yog qhov kev ntseeg siab tshaj plaws?
1. Taw qhia txog tshuaj
Tus neeg sawv cev no yog Abamectin. Tus neeg sawv cev no yog qhov sib xyaw ntawm Abamectin thiab Thiazophos. Abamectin yog ib tug biogenic cag-knot nematode tswj tus neeg saib xyuas uas muaj kev sib cuag tua thiab mob plab lom. Nws ua rau lub paj hlwb ntawm cov kab tsuag tua nematodes; thiazophosphonate yog ib qho kev sib cuag thiab kev ua haujlwm nematicide, uas tuaj yeem cuam tshuam kev ua haujlwm ntawm nematodes ntawm koob tshuaj tsawg thiab tiv thaiv nematodes los ntawm invading cov hauv paus hniav.
Tom qab ob qho tib si sib xyaw, cov co-toxicity coefficient nce mus txog 216, uas muaj cov txiaj ntsig pom tseeb. Nws muaj kev sib cuag thiab mob plab lom, ua kom lub cev nqus tau zoo, thiab ua haujlwm ntev. Tam sim no nws yog tus neeg saib xyuas kev noj qab haus huv tshaj plaws thiab pheej yig tshaj nematicidal.
2. Cov yam ntxwv tseem ceeb
(1) Cov nyhuv nrawm nrawm:Avi-thiazophosphonate muaj cov txiaj ntsig zoo thiab ua haujlwm ntawm lub paj hlwb ntawm nematodes. Thaum cov nematodes tuaj rau hauv kev sib cuag nrog tus neeg sawv cev, lawv yuav raug tshuaj lom nyob rau hauv 15 feeb thiab nres lawv cov dej num thiab ua phem. Tam sim no nws yog tus neeg sawv cev ceev tshaj plaws los tua cov nematodes.
(2) Ntev ntev ntawm cov nyhuv:Avitamin yog qhov ruaj khov hauv cov av thiab tuaj yeem tua cov hauv paus-knot nematodes hauv av. Thiazophosphonate muaj kev ua haujlwm zoo. Tom qab absorbed los ntawm cov qoob loo cov hauv paus hniav, nws muaj peev xwm muaj nyob rau hauv cov qoob loo rau lub sij hawm ntev kom ua tiav lub hom phiaj ntawm kev siv tshuaj tua kab tas mus li. Feem ntau, lub sijhawm siv tau tuaj yeem yog li 4 lub hlis, thiab qhov ntev tshaj plaws tuaj yeem yog 6 lub hlis.
(3) Kev nyab xeeb zoo:Avi-thiazophosphonate muaj kev nyab xeeb rau cov qoob loo thiab yuav tsis ua rau phytotoxicity. Abamectin yog ib qho tshuaj tua kab macrolide nrog kev sib cuag thiab mob plab lom. Nws muaj kev nyab xeeb rau cov qoob loo thaum siv ntawm cov tshuaj pom zoo. Thiazophosphon kuj yog ib qho ua tau zoo thiab tsis muaj tshuaj lom organophosphorus nematicide tsuas yog siv rau cov qoob loo hauv lub cev thiab tseem muaj kev nyab xeeb rau cov qoob loo.
(4) Tsawg toxicity thiab tsawg residue:Avithiazophosphonate yog ib qho kev sib xyaw ntawm cov tshuaj lom neeg lom neeg avermectin thiab kev ua haujlwm siab thiab tsis muaj tshuaj lom organophosphorus tshuaj tua kab. Nws muaj cov pa phem me me rau cov av thiab dej hauv av thiab muaj cov tshuaj lom neeg tsawg rau tib neeg thiab ib puag ncig cov kab mob. Nws muaj me ntsis cuam tshuam rau cov kab mob uas muaj txiaj ntsig hauv cov av.
3. Cov ntaub ntawv tseem ceeb
Tam sim no, muaj ntau lub tuam txhab sau npe ntawm avithiazophosphonate nyob rau hauv kuv lub teb chaws, thiab kuj muaj ntau ntau cov khoom noj cov ntaub ntawv. Cov ntaub ntawv tseem ceeb yog: 15%, 11%, 10.5%, 9%, 6%, 5%, 3% granules, 21%, 9% dej emulsion, 10% microemulsion.
4. Yuav siv li cas
(1) Kev kho av:Nyob rau hnub sowing, transplanting, los yog cog qoob loo xws li txiv lws suav, cucumbers, thiab watermelons, siv 11% avid thiazolium phosphine granules 2-4 kg / mu, sib tov cov granules nrog 15-20 kg zoo av los yog organic chiv, sprinkle, kwj, los yog qhov, kom huv si sib tov cov tshuaj tua kab nrog cov av ua ntej sowing los yog transplanting cov qoob loo, thiab ces watered lawv.
(2) Kev kho mob hauv paus dipping:Nyob rau hnub cog lossis hloov cov txiv lws suav, dib, watermelons, muskmelons, thiab lwm yam, dip cov hauv paus hniav hauv 21% Avitamin thiazophosphonate dej emulsion 750 zaug, ces hloov thiab npog nrog av, uas tuaj yeem tswj kev puas tsuaj ntawm cov hauv paus hniav nematodes. .
(3) Kev kho hauv paus irrigation:Nyob rau theem pib ntawm cov hauv paus pob txha nematode tshwm sim hauv cov qoob loo xws li txiv lws suav, cucumbers, luam yeeb, txiv hmab txiv ntoo, txiv tsawb, txiv tsawb, thiab cantaloupes, 500-1000 milliliters ntawm 21% avi thiazolium phosphine dej emulsion tau tov nrog 750 kilograms dej thiab stirred tusyees ua ntej hauv paus irrigation. Txhua tsob nroj tau ywg dej nrog 200-300 milliliters kua, uas tuaj yeem tswj tau sai sai ntawm cov hauv paus pob txha nematodes.
