Department of Agriculture in Thailand reminds avocado growers to prepare for the outbreak of black spot disease

During this period, hot weather and heavy rain in some areas. Department of Agriculture Remind avocado growers to prepare for the outbreak of black spot disease. That can be found in the phase of the avocado tree fruit is light, symptoms that the first leaves will see a dark brown lesion. If symptoms are severe The wound will expand rapidly. The leaves will dry and fall off. Symptoms on the petioles, branches and peduncle A purple wound, spot, or mark If the symptoms are severe, the wound will spread, causing the stems and branches to dry out. If the peduncle occurs, the inflorescences will wither and fall off before fruiting. As for the symptoms that were weak Found the result is light brown to black spots. If symptoms are severe The fruit will fall off prematurely, symptoms on the mature fruit will be found in the near harvest and after harvesting. The lesion is brown to black. Round shape, variable size Later, the wound spreads into a wound, collapses in the fruit, causing the ...