(1) Cov kab mob damping-off
Damping-off yog ib hom kab mob yub ntawm cov qoob loo Solanaceae. Nws tsuas yog ua mob rau cov nroj tsuag los yog ua rau cov noob lwj. Tom qab lub seedlings yog unearthed, tus kab mob tshwm sim nyob ze rau hauv av ntawm cov tub ntxhais hluas stems. Ntws, rot, thiab seedlings yuav poob. Cov yub poob tseem ntsuab nyob rau lub sijhawm luv luv, thiab cov kab mob yog densely npog nrog dawb woolly pwm thaum nws ntub. Yog tias cov av kub qis dua 15 degree, cov av noo siab dhau, thiab lub teeb tsis txaus, kev loj hlob ntawm cov yub yuav tsis muaj zog, tshwj xeeb tshaj yog nyob rau hauv huab cua hnyav nrog huab cua tsis tu ncua, tsis tu ncua los nag, thiab daus tas li.
Tus kab mob no yog kab mob fungal tshwm sim los ntawm kev kis kab mob ntawm Pythium melons thiab txiv hmab txiv ntoo. Cov kab mob tuaj yeem rot nyob rau hauv cov av tau ntev, muaj sia nyob rau lub caij ntuj no nyob rau hauv cov kab mob ntawm cov nroj tsuag residue thiab cov av, thiab tom qab ntawd ua mob rau lub seedlings nyob rau hauv seedbed. Cov kab mob kis tau los ntawm av, tab sis kuj los ntawm cov noob cab.
(2) Solanaceous Zaub Seedling Blight
Seedlings kis nrog blight tau wilted thaum nruab hnub, zoo thaum hmo ntuj, thiab withered thiab tuag tom qab ob peb hnub. Cov tub ntxhais hluas stems ze rau hauv av tig tsaus xim av, maj mam tig xim av, thiab tom qab ntawd shrink thiab ua thinner, ua rau cov yub poob. Indistinct lub teeb xim av arachnoid fungus tau yug los ntawm tus kab mob.
Tus kab mob yog cov kab mob hauv av los ntawm cov kab mob Rhizoctonia solani. Cov kab mob hazel ntawm cov kab mob yog mycelium ntawm cov kab mob. Lub mycelium lossis sclerotia ntawm cov kab mob tuaj yeem nyob tau ntau xyoo ntawm qhov seem ntawm cov nroj tsuag muaj kab mob thiab lwm yam organic teeb meem hauv av, thiab cov kab mob hauv cov av yuav ua mob rau cov yub. Qhov kub yog 15-21 degree, tshwj xeeb tshaj yog thaum nws siab tshaj 18 degree . Kev sov thiab av noo, cog ntau dhau, thiab ywg dej ntau dhau yuav ua rau lub txaj tsis zoo thiab ntub, uas tsis tsim nyog rau kev loj hlob ntawm seedlings, thiab nws yog kab mob.
Txoj kev tiv thaiv:
① Xaiv qhov chaw uas muaj qhov siab thiab qhov dej ntws zoo li cov noob qoob loo. Cov chiv yuav tsum tau decomposed tag nrho, thiab sowing yuav tsum txawm thiab tsis heev ntom.
② Xaiv cov av tsis muaj kab mob raws li cov noob qoob loo. Cov av qub qub tsuas yog siv tau tom qab ua kom tsis muaj tshuaj lom neeg. Rau kev tua kab mob noob, siv 6-8 grams hmoov sib tov sib npaug rau 70 feem pua pentachloronitrobenzene hmoov thiab 50 feem pua thiram wettable hmoov (los yog 65 feem pua zinc zinc wettable hmoov) ib square meter; los yog siv pentachloronitrobenzene los yog 6-8 grams ntawm 50 feem pua carbendazim, ntxiv txog 12.5 kg ntawm ib nrab qhuav zoo av thiab sib tov los ua tshuaj av. Ua ntej sowing, sprinkle ib feem peb ntawm cov tshuaj av rau ntawm seedbed li cushion av, ces sow, thiab ces siv cov seem ntawm cov tshuaj av yog siv los npog thiab muaj kev tiv thaiv zoo.
③ Ua tib zoo saib xyuas cov noob thiab kev tswj cov noob, tsau cov noob hauv dej sov ntawm 55 degree ua ntej sowing, los yog kho lawv nrog tshuaj, thiab ces germinate thiab sow. Tswj qhov kub thiab av noo ntawm seedbed, thiab tus nqi ntawm watering yuav tsum tsis txhob ntau dhau. Thiab xyuam xim rau qhov cua kom tiv thaiv cov noob los ntawm khov. Yog tias pom cov kab mob muaj kab mob, lawv yuav tsum tau rub tawm tam sim ntawd, hlawv lossis faus tob.
④ tshuaj tswj. Thaum pib ntawm tus kab mob, siv 1 kg ntawm txiv qaub thiab 10 kg ntawm tsob ntoo tshauv los sib tov thiab kis, los yog tsuag tooj liab ammonium sib tov (2 feem ntawm tooj liab sulfate, 11 feem ntawm ammonium bicarbonate, grind rau hauv hmoov thiab sib tov, tom qab 24 teev ntawm airtightness, ntxiv 400 qhov chaw ib kg ntawm tov hmoov. kg ntawm dej), {0 txiv neej tshuaj tsuag 8 feem pua ntawm cov dej 50 zaug ib hnub), } hnub, thiab tshuaj tsuag 2-3 zaug tsis tu ncua.
Cov tswv yim kws tshaj lij:Seedling kab mob yuav tsum tau ua raws li kev ntxiv dag zog rau kev tswj cov yub raising txheej txheem, ua ib tug zoo txoj hauj lwm ntawm tshuaj tua kab mob ntawm cov noob thiab yub av, kho qhov kub thiab txias, humidity thiab lub sij hawm ntawm seedling raising, thiab lwm yam.
