What if the kumquat is infested?
Kumquat, also known as small tangerine and kumquat, is a common fruit in Guangdong, which is deeply loved by people because it is juicy and sweet. Now it is being planted in many areas, but during the planting period, there will be all kinds of worms. What about kumquat worms?
1. Leaf miner
Damage symptoms: most of the larvae sneak into the back of the kumquat leaves under the epidermis, forming a curved insect path, the damaged leaves often curl and fall off, seriously affecting the growth and flowering and fruiting.
Control method: a large number of new shoots germinated in spring. When the shoot length is less than 1cm, the biological pesticide Bacillus thuringiensis 100x solution can be used for spray control, and the effect is very good, and the fruit can also be sprayed with omethoate EC 1000 times.
2. Full claw concealment
Damage symptoms: citrus full claw cochlea, also known as red spider, yellow spider, harm kumquat leaves, shoots and fruits, the leaves suffer the most, and the occurrence is the most from June to September. When the leaves are damaged, there are many gray-white dots on the front, losing luster, and in serious cases, a piece of pink and white, resulting in a large number of fallen leaves.
Prevention and control methods: during the occurrence period, it can be sprayed with 0.3 degree stone sulfur mixture or 1000 times of 40% dimethoate emulsion or 70 times of 20% acarate wettable powder, once every half month, 3-4 times, and the effect is remarkable.
3. Jade belt Phoenix butterfly
Damage symptoms: this insect harms the leaves with larvae, the young and tender leaves are often eaten up, and the older leaves are often eaten so that only the main veins are left.
Prevention and control methods:
The main results are as follows: (1) the overwintering pupa found on the plant in winter should be removed in time.
(2) the larvae of Phoenix butterflies are large and easy to be found, and can be caught and killed in time when sporadic occurrence occurs.
(3) the larval occurrence period can be controlled by spraying with 800 times of 90% trichlorfon.
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