多井唑防治水稻穗瘟、纹枯病试验研究

Studies on Controling Rice Blast and SheathBlight by Duojingzuo,A Mixture of Carben-dazim,Tricyclazole and.Jinggangmeisu

２０％多井唑可湿性粉剂是防治水稻后期穗瘟和纹枯病理想的药剂，经济有效的亩用量为１００克，水稻破口期用药一次，对穗瘟的防效可达９５％，对纹枯病的兼治效果亦达８０％，增产效果均在２０％以上，明显优于三环唑、井冈霉素单用。

Duojingzuo 20%WP,a new fungicide combinedformulation of carbendazim, trieyclazole and Jinggangmeisu,was uased to control rice blast(Piricularia oryzae)and sheathblight(Hypochnus sasakii).With its application at headingstage of rice at rate of 1.5kg a, i, /ha, Duojingzuo was econom-ically effective. The control effects of Duojingzuo on rice blastwas over 95%, on sheath blight was 80%;The increase of riceproduction exceeded 20%. Whereas,single componet of the mixture showed lower effect to control diseases.