MySheen

Symptoms and control methods of wax gourd angular spot

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, Symptoms: mainly damage to leaves, petioles and fruits. It can be damaged from seedling stage to adult stage. True leaf infection, initially a bright green flooding spot, gradually light brown, disease spot limited by the vein of the leaf is polygonal, yellowish brown, when the humidity is high, the back of the leaf is overflowing with milky white turbid bead-like bacterial pus, and the disease is brittle and easy to perforate. The stem and petiole are infected.

Symptoms: mainly damage to leaves, petioles and fruits. It can be damaged from seedling stage to adult stage. True leaf infection, initially a bright green flooding spot, gradually light brown, disease spot limited by the vein of the leaf is polygonal, yellowish brown, when the humidity is high, the back of the leaf is overflowing with milky white turbid bead-like bacterial pus, and the disease is brittle and easy to perforate. The stem and petiole were infected, and there were water-immersed spots at the infection point, which expanded longitudinally along the stem groove, showing a short strip, and bacterial pus could also be seen when the humidity was high. Fruit infected, there are water-immersed spots, irregular or continuous after expansion, the diseased part overflows a large amount of dirty white bacterial pus, and the pathogen invades the seed, causing the seed to carry bacteria. Prevention and treatment methods: at the initial stage of the disease, copper noble suspension or Kesha wettable powder or agricultural streptomycin was sprayed with water, once every 10 days, a total of 2 Mel for 3 times.

 
0