How to treat lotus disease

Lotus is a very beautiful ornamental flower, in the hot summer will have different amorous feelings, there are many places will plant lotus, then how to treat lotus disease?

1. Rot disease

The disease began in early May, with dark brown spots on the initial leaves, then gradually expanded, causing rot, and then spread to petioles, underground stems and lotus roots. In order to prevent the disease, the first thing to do is to keep the water quality clean and remove the diseased leaves immediately. At the initial stage of the disease, you can spray it with 800 times topiramate or 65% Dysen zinc 600 times.

2. Withered leaf disease

The disease is harmful to the leaves, first of all, black brown spots occur on the leaves, and when serious, all the standing leaves are black and withered. Low temperature and humidity are conducive to the growth of bacteria. If diseased plants are found, all diseased leaves should be burned and disinfected with lime.

Third, the big coir moth

The big coir moth, commonly known as the bag worm, is a kind of omnivorous pest that harms the larvae. Began to hatch in early June, crawling on the branches and leaves of other plants, floating to the lotus leaves with the wind, spinning as a bag to protect the body, and crushing the leaves to stick to the outside of the bag. So he crawled with a bag and stretched out his head to bite the lotus leaf and bud handle. When the harm is serious, 20-30 can be hung on the back of a lotus leaf, biting the leaves with thousands of holes, and even eating light. It can be captured manually when it is rare, and can be sprayed with a mixture of 1500-2000 times of trichlorfon and 800 times of cyanobacterium.

4. Copper green beetles

Adults endanger lotus leaves at night, overwintering as larvae and occur one generation a year. It can be trapped by light at night, or it can be sprayed with 1500-2000 times of trichlorfon.

5. Aphids

Aphids have strong fecundity and can reproduce for several generations a year. It is often clustered on rolled leaves, new leaves, standing petioles and young buds that have just come out of the water to absorb juice and, in severe cases, wilt the buds. It can be sprayed with 3000 times of omethoate or 2500 times of "4049".

Although the lotus is very tenacious in vitality and less disturbed by diseases and insect pests, it is also necessary to prevent diseases and insect pests.