摘要
在ＰＤＡ含毒介质上的试验表明，苯莱特（５０％ＷＰ）、多菌灵（５０％ＷＰ）、甲基托布津（７０％ＷＰ）抑菌效果最好，稀释３０万倍的药液对尖孢镰刀菌抑菌率分别为１００％、９１．９％、６７．９％，而粉锈灵（１５％ＷＰ）３０００倍液，抑菌率仅为７０．１％；苯莱特、粉锈灵１５００倍液对腐皮镰刀菌抑菌率仅为９４．４％和１４．０％。苯莱特和粉锈灵对尖孢镰刀菌的抑菌效果明显高于腐皮镰刀菌。抑菌圈法试验，多菌灵、苯莱特５００～１０００倍液对腐皮菌的防效又优于尖孢镰刀菌，而粉锈灵对２种镰刀菌均不产生抑菌圈。香荚兰幼根接种药效试验，粉锈灵对尖孢镰刀菌防效最好（５６．６％），多菌灵、甲基托布津次之（５１．６％、５０．９％），而苯莱特较差（４０．４％）。粉锈灵１０００倍液浸泡１ｈ和盆栽施药，均对香荚兰幼根产生药害。
The results on PDA with pesticides show that the bacteriostasis of benomyl 50% WP,carbenda zim 50% WP and thiophaeate-methyl 70% WP are the best,The rate of restraining F.oxysporum are 100% , 91.9%and 67.9%,respectively,with 3×10 5-fold.The rate is 70.1% with 3000-fold triadimefon.The rate of restraining F.solani are 94.4%and 14.0%,respectively, with 1500-fold benomyl or triadimefon.The effects of benomyl and triadimefon on F.oxysporum are better than on F.solani.But the effect of controling F.solani with 500～1000-fold benomyl or carbendazion are better than controling.F.oxysporum,traidimefon is no effect by restrining fungus circle.The test show that effect of triadimefon on F.oxysporum is the best(56.6%),effect of carbendazim,thiophanate-methyl and benomyl are 51.6%,50.9%and 40.4%,respectively.Young roots of vanilla occur toxicosis diping in for 1h or drench with 1000-fold triadimefon.
出处
《云南热作科技》
1999年第1期4-7,共4页
Journal of Yunnan Tropical Crops Science & Technology
基金
云南省"九五"攻关课题
关键词
香荚兰
根腐病
镰刀菌
苯莱特
多菌灵
vanilla
root rot
Fusarium sp.
benomyl
carbendazim
thiophanate-methyl
triadimefon
