In Vitro and In Vivo Toxicity of Several Fungicides and Timorex Gold Biofungicide to Pythuim aphanidermatum
In vitro i in vivo toksičnost fungicida i biofungicida za Pythuim aphanidermatum
Pregled/ Otvaranje
Autor
Mihajlovic, Milica
Rekanovic, Emil
Hrustic, Jovana
Tanovic, Brankica
Potocnik, Ivana
Stepanovic, Milos
Milijasevic-Marcic, Svetlana
Ključne reči
Pythium aphanidermatumSensitivity
In vitro
In vivo
Fungicides
Biofungicide
osetljivost
fungicidi
biofungicid
Metadata
Prikaz svih podataka o dokumentuApstrakt
A survey of in vitro and in vivo sensitivity of Pythuim aphanidermatum to several commercial
fungicides and a biofungicide was undertaken. An isolate of P. aphanidermatum pathogenic
to pepper was collected from a naturally infested greenhouse soil from Smederevska
Palanka, Serbia. The P. aphanidermatum isolate was sensitive to all tested products. The
obtained EC50 values were as follows: 10.21 mg/l for propamocarb-hydrochloride, 302.65
mg/l for fosetyl-Al, 11.18 mg/l for mancozeb, 1.27 mg/l for mefenoxam, 0.05 mg/l for azoxystrobin,
and 175.33 mg/l for tea tree oil. Under greenhouse conditions, fosetyl-Al was the
most efficient fungicide among the tested substances (97.5%). The biofungicide tea tree oil
(Timorex Gold) (35.0%) exhibited the lowest efficacy among the tested materials, but it was
still significantly better than the untreated control plot. The efficacies of propamocarb-hydrochloride
(Previcur 607 SL), mancozeb (Mankogal 80 WP), azoxystrobin (Quadris) and mefenoxam
(Ridomil gold 480 SL), were 72.5%, 77.5%, 57.5% and 75.0%, respectively. Ispitivana je osetljivost Pythuim aphanidermatum u in vitro i in vivo uslovima na odabrane
fungicide i biofungicid. Izolat P. aphanidermatum je izolovan iz zemljišta iz staklenika
gde je prethodno uočeno poleganje biljaka paprike (Smederevska Palanka, Srbija). Izolat
P. aphanidermatum je ispoljio osetljivost na sve testirane preparate. Dobijene su sledeće
EC50 vrednosti: propamokarb-hidrohlorid 10,21 mg/l, fosetil-Al 302,65 mg/l, mankozeb 11,18
mg/l, mefenoksam 1,27 mg/l, azoksistrobin 0,05 mg/l i ulje čajnog drveta 175,33 mg/l. U
uslovima staklenika, fosetil-Al (Aliette flash) je ispoljio najveću efikasnost (97,5%) u odnosu
na sve ispitivane preparate. Biofungicid na bazi ulja čajnog drveta (Timorex Gold) je ispoljio
najmanju efikasnost (35,0%) u odnosu na druge ispitivane fungicide ali je intenzitet
zaraze statistički značajno bio manji u poređenju sa inokulisanom i netretiranom kontrolom.
Efikasnost preparata na bazi propamokarb-hidrohlorida (Previcur 607 SL) bila je 72,5%,
mankozeba (Mankogal 80 WP) 77,5%, azoksistrobina (Quadris) 57,5% i mefonoksama (Ridomil
gold 480 SL) 75,0%.