Chinese Academy of Agricultural Sciences, Zhengzhou fruit tree researchers to “sweet Charlie” strawberry as the test material, the strawberry gray mold bacteria as test bacteria, mycelial growth rate method to study the 12 kinds of fungicides on strawberry Botrytis cinerea.

            The results showed that the toxicity of 50 g / L hexaconazole SC was the strongest with an EC50 value of 0.0519 mg / L in indoor toxicity test; 500 g / L iprodione SC, 430 g / L tebuconazole SC and 400 g / L Flusilazole EC on strawberry Botrytis cinerea also has a good inhibitory effect.

            In the field experiment, the control effect of 50 g / L hexaconazole SC on strawberry gray mold was the best, with the control effect of 81.57% -85.42%; 500 g / L iprodione SC, 430 g / L tebuconazole SC and 400 g / L flusilazole EC also has good control effect on strawberry gray mold, the control effect is above 74%; 10% polyoxin WP and 3% A certain degree of control effect, control effect can reach more than 65%.

            Up to now, the above 6 kinds of medicaments have not yet been registered in the control of strawberry gray mold disease in our country.