During 2010—2011, the control effects of 25% difenoconazole azole prochloraz SC on leaf spot disease of banana have been
evaluated under field.The results showed that 25% difenoconazole azole prochloraz SC had good effect on leaf spot disease of banana, after spayed three times, the effect of 25% difenoconazole azole prochloraz diluted with 1 000~2 000 times dilution was 75.25% to 87.43% .Among that,the control effect of 25% difenoconazole azole prochloraz diluted with 1 000 times was compared with that of 25% difenoconazole azole prochloraz microemulsion diluted with 1 500 times and the difference was remarkable,and its 2 000 times dilution was equivalent to that of 25% difenoconazole azole prochloraz microemulsion with 1 500 times at the same concentration,and 25% difenoconazole azole prochloraz SC had no harmful effect on the growth of banana plants.Therefore,The use of 25% difenoconazole azole prochloraz SC after 1 000~1 500 times
dilution at the beginning of disease occurrence. it could be applied on controlling the banana leaf spot disease. |