| Abstract:With fungicides barrel mixing of Difenoconazole and Mancozeb as the indicator in apple orchards,the reducing effects of barrel mixing Tianda-2116,Atailing and Maisi on apple scab and alternaria blotch disease were measured in the field under the ecological conditions of East Gansu.The results showed that under conditions of safe apple growth and development,and effective control of two kinds of diseases,the addtion of Tianda-2116+Maisi,Atailing + Maisi to mixing barrel could dilute 10% Difenoconazole WG and 80% Mancozeb WP 3 500 and 1 000 times,respectively.Compared with conventional dosages,the amounts were reduced by 28.57% and 40%,respectively.After 10 d,30 d and 52 d of the sixth time application,the control effect on apple scab disease was over 88%,85% and 81%,respectively,among which barrel mixing Atailing and Maisi were better.At the same time,the control effects on apple alternaria blotch disease were over 78%,74% and 64%,respectively,among which barrel mixing Tianda-2116 and Maisi were better.In conclusion,both barrel mixing Tianda-2116 + Maisi,and Atailing + Maisi can decreased fungicides amounts obviously,it is suggested applying in production. |
