Why does kumquat growth suffer from leafminer moths, and what are the symptoms? Can it be prevented?
Kumquat family, belonging to the kumquat family. It is also called golden jujube, golden orange, and small orange. Perennial green watering trees. Generally up to about three meters, usually not afraid of being pricked, small branches are green, when the nutrients are sufficient, there are many forked branches; Leaf needle shape to long oval shape, five to nine centimeters long, all edges, leaf handle slightly winged; The flowers are small, white pink, fragrant, one to three axillary, five petals, stamens about twenty to twenty-five, and five rooms in the ovary; The fruit is oval or inverted in the shape of an ovaries, 2.5 to 3.5 centimeters long, golden yellow; The fruit is round and belongs to the island country of kumquat. Originally distributed in the southeast coastal areas of China, especially in Guangdong, the history of planting and eating golden oranges is the longest, and it is the hometown of solid kumquats. In addition, South China and the middle and lower reaches of the Yangtze River are also vigorously cultivated. You can appreciate its leaves, flowers, fruits, or orange cakes specially made for the production of fruits, bonsai should be carefully managed after planting, propagation should be carried out by grafting, and rootstocks should be made of goji or citrus seedlings. A tree can produce more than fifteen small golden oranges, which are generally exported to foreign regions during the Spring Festival, and are very popular with foreign cultivation. Its medicinal value is also quite high.
Preventive treatment of leafminer moths
The kumquat leafminer moth, also known as the drawing worm and the ghost marker, is the most serious pest that eats and destroys young branches, delicate branch parts, and leaves. This insect grows under the surface of the delicate branches when it is a small insect, forming a white curved insect aisle, making the leaves curl up and bending and hardening, resulting in a poor growth environment for the newly born branches, affecting the growth trend of the tree and pulling out the branches. Small worms are wounds that destroy and help the invasion of ulcer virus bacteria, often causing large areas of ulcer virus to occur. After the leaves are curled and bent, they will provide a place for many kinds of pests such as red spiders, curled leaf moths and so on to live in groups and spend the winter, which increases the difficulty of controlling winter pests. Leafminer moths occur in ten to fifteen generations per year. Destruction began in May. From July to September, when the summer and autumn branches are most seriously damaged, the untidy damage of small trees and seedlings pulling out the branches is the most serious, the summer branches are the most seriously damaged, and the autumn branches follow the degree of harm behind the summer, and the spring branches are basically not persecuted.
Agricultural preventive treatment is the summer and autumn of July to September during the flourishing and germination of branches, is the peak period of leafminer moth occurrence, should be controlled branches, immediately coated to avoid premature, late extraction of sporadic and irregular delicate branches, a large number of new branches when germinating and then uniformly put down branches, can reduce damage, winter pruning of injured branches, can reduce the density of insects over the winter. It is recommended to apply a healing protective film to repair the cut wound to promote the healing of the wound.
Drug control generally begins to spray when the new branch grows to two to three centimeters, or the probability of pulling out the tree strip can reach 25%, or the chance of injury reaches 5%. Spray once every four to five days, three to four times in a row. The agent can be selected from the mojalang agent, destroy the larvae, insect enemy mites and other targeted agents in turn to use preventive treatment to avoid resistance to the drug. It is recommended to add a new high-fat film to enhance the medicinal effect.
The insect is painted as a larvae that sneaks under the surface of the young shoots, forming a white curved larval aisle, causing the leaves to curl and bend and harden and fall, causing a new growth environment, affecting the tendency of the tree and pulling out branches. Worms are wounds that destroy and help the invasion of ulcer virus bacteria, often triggering large areas of ulcer virus. After the leaves are curled and bent, many pests called red spiders, leaf curling moths and so on provide a place to live and spend the winter, which increases the difficulty of controlling winter pests. Leafminer moths occur in ten to fifteen generations per year. Small trees and saplings pull out untidy branches are seriously injured, summer branches are seriously injured, autumn branches are slightly better, and spring branches are generally not harmed.
Agricultural preventive treatment from July to September summer autumn branch luxuriant development period, is the peak of the occurrence of leafminer moths, should be controlled branches, immediately smeared to remove premature, late extraction of sporadic irregular delicate branches, a large number of new branches sprouted together to put down branches, can reduce the damage, winter pruning of branches hurt by the combination, can reduce the density of winter bugs. Drug control generally begins to spray when the newborn branch is three to five centimeters long, or the probability of pulling out the branch reaches 23%, or the chance of injury can reach 6%. Spray once every three to five days and two to five times in a row. The potion can be used two thousand times that of Mo Qilang, 1,000 to 1,500 times that of the young urea, 1,000 to 1,000 times that of insect enemies, and 1,500 to 2,000 times that of wanling for preventive treatment.
Summary: The above content is to introduce the leafminer moth that appears when the kumquat grows, it is recommended that everyone must be carefully cared for in the management of daily life, which can improve the conditions between some fields, which will help the fruit trees grow better, and when these diseases occur, the fruit trees with diseases must also be taken out of the field for incineration or deep burial, and some agents can also be used to spray treatment to achieve the best effect of treatment.