After analysis, this year's low temperature in early spring, the budding period of the grapes is late than usual, and after entering April, the low temperature, rainy weather, and sunny weather that lasted for nearly half a month led to the slow growth of the sprouted grapes, the slow growth of new shoots, and the entire growing tree. The trend is obviously weaker than in previous years. From July 10, another one-week continuous heavy rain or heavy rainstorm was encountered. After the heavy rain, high temperatures exceeding 35°C occurred. At this time, the coloring period of grapes causes high-temperature growth disorders. After July 18th, the orchards began to suffer from illnesses. The orchards with poor drainage conditions or high loads were more severely affected. Reasonably-loaded orchards and orchards sheltered from rain cultivation suffered less or less.
Currently, the orchard should be carefully inspected to remove the diseased ear and bring it out of the field. The lightly affected ear should be cut off first, then 20% difenoconazole microemulsion (2000 times) and 22.2% imazalil. Emulsion (1200 times) soaking ears. The entire garden sprayed a mixture of 40% fluorosilicon emulsion (8000 times) and 20% difenoconazole microemulsion (3000 times). Clean the ditch to ensure that the orchard does not accumulate water after rain; a reasonable load, in principle, a result of no more than a bunch of spikes; strong tree vigor, spray spraying foliar fertilizer.
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