Twasuzumye imiti yica fungiside yo kurwanya indwara muri William H. Daniel Turfgrass Research and Diagnostic Centre muri kaminuza ya Purdue i West Lafayette, muri Indiana.Twakoze ibizamini byicyatsi kibisi 'Crenshaw' na 'Pennlinks'.
Igicapo 1: Crenshaw bentgrass kuvura fungiside.Ibyifuzo byanyuma byatanzwe ku ya 30 Kanama kuri Maxtima na Traction na 23 Kanama kuri Xzemplar.Imyambi yerekana igihe cyo gusaba cyiminsi 14 (Xzemlar) niminsi 21 (Maxtima na Traction) kuri buri fungiside.
Kuva ku ya 1 Mata kugeza 29 Nzeri 2023, tuzaca imboga zombi inshuro eshanu mu cyumweru kuri santimetero 0.135.Twakoresheje 4 fl.Kuvomera umukozi Excalibur (Aqua-Aid Solutions) ku cyatsi cyombi ku ya 9 na 28 kamena.oz / 1000 kwadarato kugirango ugabanye ahantu humye.
Twahise dukoresha Fleet wetting agent (2.7 fl oz / 1000 sq ft) ku cyatsi ku ya 16 Kanama kugirango tugabanye ahantu humye.
Twakoresheje amazi 9 ya Tempo SC (cyfluthrin, Envu).oz / acre na Meridian (Thiamethoxam, Syngenta) 12 fl oz.Kamena 9 oz / hegitari yo kurwanya ibimonyo.Twakoresheje 0.5 lb y'ifumbire ya azote ku ya 10 Kamena na 2 Nzeri dukoresheje Country Club MD (18-3-18, Icyatsi cya Libani).N / 1000 metero kare
Ibibanza byacu byubushakashatsi byari bifite metero 5 x 5 z'ubunini kandi byarakozwe hifashishijwe igishushanyo mbonera cyuzuye cyahagaritswe hamwe na bine.Koresha sprayer ikoreshwa na CO2 kuri 50 psi na TeeJet 8008 ya spray ya tekinike ya tekinike ihwanye na litiro 2 / metero kare 1000 y'amazi.
Muri ubwo bushakashatsi bwombi (Ikigereranyo cya 1 n'Ikigereranyo cya 2), twatangiye kwivuza ku ya 17 Gicurasi, hamwe n'igihe ubuyobozi bwanyuma butandukanye bitewe n'ubuvuzi (Imbonerahamwe 1).Ku ya 1 Nyakanga, twakoresheje icyuma gikwirakwiza intoki kugira ngo tugabanye neza amadolari yanduye ingano ku gipimo cya 12.5 cc ku buriri.Turahita dusiga ingano yumushwagara hejuru yicyatsi mbere yiminsi ine.
Twasuzumye ubukana bwibibanza byamadorari dushingiye ku mubare wanduye kurubuga.Agace kari munsi y’indwara igenda itera (AUDPC) yabazwe hakoreshejwe uburyo bwa trapezoidal ukoresheje formula Σ [(yi + yi + 1) / 2] [ti + 1 - ti], aho i = 1,2,3,… n -1, aho yi - igipimo, ti - igihe cyo kugereranya i-th.Amakuru yakorewe isesengura ryibitandukanye kandi bivuze gutandukana (P = 0.05) ukoresheje ikizamini cya LSD kirinzwe na Fisher.
Twabanje kubona itandukaniro mugucunga amadolari hagati yubuvuzi ku ya 31 Gicurasi.Ku ya 13 Kamena, uburemere bw’amadolari mu kuvura umushinga bwari hejuru cyane ugereranije n’ubundi buvuzi (Ishusho 1).Ku rundi ruhande, gahunda ya $ 20 Nyakanga 20 ubukana bwa gahunda yari munsi yizindi miti.
Ku ya 2 Kanama, uturere twavuwe hamwe na 1,3 fl ya Traction (fluazimide, tebuconazole, Nupharm).oz / 1000 kw.oz / 1000 kwadarato mugihe kimwe.Ku ya 16 na 28 Nzeri, ibyumweru bibiri na bine nyuma yo gusaba bwa nyuma, ibibanza byakorewe hamwe na Traction byari bifite amadorari menshi cyane kurusha Maxtima kandi byari bifite agaciro ka AUDPC kuruta kugenzura.
Twabonye bwa mbere amadorari ku ya 7 Nyakanga.Kugeza ku ya 7 Nyakanga, imbuga zose zavuwe zagize icyorezo kimwe kuri buri rubuga.Nta tandukaniro ryo kuvura ryagaragaye.Indangagaciro za AUDPC mubibanza byose byavuwe byari munsi cyane ugereranije nibibanza bitavuwe (Imbonerahamwe 1).
Ikigo cya Purdue cyo muri kaminuza ya Daniel Turfgrass Ubushakashatsi n’isuzumabumenyi cyasuzumye akamaro ko kuvura fungiside kuri bentgrass ikuze, ihagaze ku buntu.
Kuva ku ya 1 Mata kugeza 1 Ukwakira, guca gatatu mu cyumweru kugeza ku burebure bwa santimetero 0.5.Twerekanye Ference (cyantraniliprole, Syngenta) ku ya 30 kamena saa 0.37 fl.oz / 1000 kw. ft. kugenzura grub yera.Ku ya 20 Nyakanga, twakoresheje ibikoresho bitanga amazi Excalibur kuri dosiye ya 2.7 fl.oz / 1000 kwadarato kugirango ugabanye ahantu humye.
Twakoresheje Fleet moisturizing agent (Harrell's) ku ya 16 Kanama muri 3 fl.oz / 1000 kwadarato kugirango ugabanye ahantu humye.Twahise dushyira ibiro 0,75 bya azote ku ya 24 Gicurasi dukoresheje Shaw (24-0-22).N / 1000 kwadarato 13 Nzeri, 1.0.N / 1000 metero kare
Ibibanza byari bifite metero 5 x 5 z'ubunini kandi bitondekanijwe muburyo buteganijwe bwuzuye hamwe na bine.Koresha sprayer ikoreshwa na CO2 kuri 45 psi na TeeJet 8008 eshatu ziteye spray zihwanye na litiro 1 / metero kare 1000 y'amazi.
Twasabye bwa mbere fungiside ku ya 19 Gicurasi naho iyanyuma ku ya 18 Kanama.Ibinyampeke byanduye byanduye amadolari yatewe no gukwirakwiza intoki ku ya 27 Kamena na 1 Nyakanga ku gipimo cya cm 11 na cm 12 kuri buri kibanza.Turahita dusiga ingano yumushwagara hejuru yicyatsi mbere yiminsi ine.
Uburemere bw'indwara bwasuzumwe buri byumweru bibiri mu bushakashatsi.Uburemere bwindwara bwasuzumwe no kureba ijanisha ryahantu hafashwe kuri buri rubuga.Agace kari munsi yumuvuduko windwara (AUDPC) kabaruwe hakoreshejwe uburyo bwa trapezoidal bwasobanuwe haruguru.Amakuru yakorewe isesengura ryibitandukanye kandi bivuze gutandukana (P = 0.05) ukoresheje ikizamini cya LSD kirinzwe na Fisher.
Twabanje kureba aho amadolari (<0.3% ubukana, 0.2 yanduye kuri site) ku ya 1 kamena, kandi umubare wabo wiyongereye nyuma yo guterwa.Ku ya 20 Nyakanga, uturere twavuwe na Encartis (boscalid na chlorothalonil, BASF) 3 fl.oz / 1000 kwadrato - iminsi 14 na 4 fl oz / 1000 kw. kuruta ibindi bibanza byose byavuwe hamwe nubugenzuzi butavuwe.
Kuva ku ya 20 Nyakanga kugeza 15 Nzeri, ibibanza byose byavuwe byanduye bike ugereranije nibibanza bitavuwe.Uturere twavuwe na Encartis (3 fl oz / 1000 sq ft - iminsi 14), Encartis (3.5 fl oz / 1000 sq ft - iminsi 21) 2 Nzeri, ibyumweru bibiri nyuma yo gusaba bwa nyuma (WFFA) d), Xzemplar (fluxapyroxad, BASF) 0.21 fl.ounce / 1000 kwadarato - iminsi 21, Xzemlar (0.26 oz / 1000 sq.
Ku ya 3 Kanama na 16 Kanama, igipimo cya Encartis nigihe ntarengwa cyo gusaba nticyagize ingaruka zikomeye ku igenzura ry’amadolari y’Amerika.Nyamara, ku ya 2 na 15 Nzeri (WFFA 2 na 4), ibibanza byashobokaga kuvurwa na Encartis (3 fl oz / 1000 sq ft - iminsi 14) na Encartis (3.5 fl oz / 1000 sq ft)...- Iminsi 21) ifite imbaraga zo kurwanya USD kurenza Encartis (4 fl oz / 1000 sq ft - iminsi 28).
Ibinyuranye, itandukaniro ryikigereranyo cyubuyobozi nigihe cyo kuvura cya Xzemplar na Maxtima ntabwo byagize ingaruka zikomeye kuburemere bwamadorari mugihe cyo kwiga.Igipimo cyo hejuru cyo gusaba cya Daconil Igikorwa (3 fl oz / 1000 sq ft) kivanze na Secure Action ntabwo cyatumye igabanuka ryumwanya wamadorari.Ku ya 2 Nzeri, ikigo cya Xzemplar cyo kugenzura kwandura indwara cyavuye ku mbuga nkeya ugereranije na Maxtima.
Indangagaciro za AUDPC zimbuga zose zavuwe zari hasi cyane ugereranije nimbuga zagenzuwe zitavuwe.Uburemere bwamadorari bwagiye bugabanuka mubibanza muriyi gahunda mubushakashatsi, hamwe numubare muto wa AUDPC wimibare yubuvuzi bwose.
Imbuga zavuwe na Daconil Ultrex zonyine zifite agaciro ka AUDPC kurenza imbuga zavuwe nubuvuzi bwose usibye izivuwe na 0.5 ml Umutekano (fluridinium, Syngenta).oz / 1000 kw.oz / 1000 kwadarato - iminsi 21 Nta phytotoxicity yagaragaye mubushakashatsi.
Igihe cyo kohereza: Apr-16-2024