Lotus - pest control

　　
Cylinder, the lotus plant pots pests are more common major pests were: Mino Mindanao: commonly known as the bag of worms; larvae are omnivorous insects. After hatching in mid-June, spinning on the climb to the drooping branches, carried by the wind sent a lotus leaf, silk, body care, make bags, head out and bite the leaves bud stalk. Serious pest, a lotus leaf can be attached to the back of 20-30 head, can eat into the old and new leaves full of holes. Control methods: when the plants are readily removed mainly by management, can also be used 90% trichlorfon ,1500-2000 800 times Pensha Yan doubly budworm. The drug of Pseudomonas beetle damage leaves, yellow slug, but also effective. Aphids: The newly hatched nymphs or adults in the water leaf cluster, the new leaves, leaf petioles and buds on the stand, drawing sap damage. Serious pest, the new charge does not show curling, wilting flower. 1 can occur in more than 20 generations, mainly in the April-September, the most intense especially in late spring and Zhongqiu. A large number occurs in the cylinder, withdraw 3% of the squeak in the basin of Nan particle dose to kill Dan; can also sneak into the floating leaf meat kill harmful cells mosquito larvae. Spodoptera: larvae bite the leaves, flowers and tender stalk, July-August often occurring on a large. Zinc sulfate can be sprayed 50% of the EC, or 80% dichlorvos EC, or 40% omethoate 1500 times. When the initial issuance of manual capture.
Major diseases are: spot blight and scab, all in 6-9 months in a lotus leaf, especially in the rainy season, serious disease. Septoria disease: the early stages, leaves appear chlorotic spots, and then gradually expanded to the surrounding tissue necrosis lesion, after drying become brown to dark brown on the ring lines like large lesions. Scab: circular lesion, diameter 0.5-8 mm, the sudden subsidence, light brown to brown. These two diseases on the growth and development and ornamental lotus effect implications. With more than 25% wettable powder Yan Ling spray sooner or later withdraw in a lotus leaf, or thiophanate-methyl spray powder withdrawal, may receive about 70% of the results.