The latest control methods of common diseases and insect pests in carambola

Carambola is our common fruit with rich nutrition, stable market price and wide planting area, but in the growth process of carambola, it is often disturbed by some diseases and insect pests, resulting in poor plant growth and reduced yield. if heavy, it will cause plant death and no harvest, which is a huge economic loss for growers. So what diseases and insect pests will carambola suffer in its growth? How to prevent and cure it? Come to pro-agricultural network to take a look at the common pest control methods of carambola.

1. Anthrax

Anthracnose is one of the common and harmful diseases of carambola. It only harms the fruit of carambola. The disease usually occurs during the fruit ripening period. In addition, it can also be infected due to the appearance of the fruit during transportation. Its pathogen overwinters in branches and fruits, and when the temperature rises in the coming year, it begins to reproduce and spread rapidly with the help of wind, rain and insects, especially in the period of high temperature and heavy rain. Brown disease spot appeared on the fruit surface, with the development of the disease, the disease spot gradually expanded, and more than one disease spot can appear a large area of black-brown disease spot, and the flesh inside the disease spot has rotted, and exudes the smell of wine.

Prevention and control methods: before overwintering, it is necessary to combine pruning to burn diseased branches, withered branches, stiff fruits and fallen fruits on the ground to prevent pathogens from overwintering on the plant. In the high temperature and rainy season, it is necessary to strengthen inter-garden management, pay attention to drainage, strengthen permeability and reduce air humidity, which can increase the application of phosphorus and potassium fertilizer and improve plant disease resistance. After a large area of the disease, Bordeaux liquid or copper oxychloride can be sprayed between the garden for prevention and treatment.

2. Red spot

Red spot is a fungal infection disease, which mainly harms the leaves of the plant. small yellow disease spots appear in the leaves during the disease. with the development of the disease, the disease spots gradually spread and combine to form round or irregular disease spots, and the disease spots begin to be red. gradually become gray or grayish brown, and finally the leaves die and fall off.

Control methods: strengthen management, increase phosphorus and potassium fertilizer, enhance tree potential and disease resistance, collect and burn the ground and planted withered leaves and branches in spring and winter, prevent fungi from overwintering, and spray Bordeaux solution or copper oxychloride to prevent the growth of new leaves in spring.

3. Bird feather moth

Bird feather moth is a kind of moth, it mainly lays eggs on the leaves and branches of the plant, and harms the flowers and young fruits after the eggs hatch, because the larvae are red, also known as red filariasis. Its larvae are very small, invisible to the naked eye, gnawing on flowers in the flowering stage, eating fruits in the fruit stage, seriously causing all the flowers and fruits to fall off, resulting in no harvest and great harm.

Prevention and control methods: spraying control should be started at flowering stage, until the young fruit turns to droop, it can be sprayed 5-6 times a month, trichlorfon or dichlorvos can be used. When spraying, we should pay attention to the concentration of trichlorfon or dichlorvos. Low concentration can not kill larvae, but high concentration, resulting in excessive drug content in the fruit, endangering the health of consumers.

4. Fruit fly

Fruit fly, commonly known as needle wasp, is not only harmful to carambola, but also a common pest in many fruits, it also lays eggs in fruits and harms the fruit after the eggs hatch, often leading to fruit decay and loss, resulting in a reduction in production, which can seriously lead to half of the fruit harmed, resulting in great losses to fruit growers.

Prevention and control methods: do a good job in orchard epidemic prevention, prevent the spread of insect pests, strengthen management, inspect the orchard every day, find harmful fruits and fallen fruits, pick and collect them in time, burn them or bury them deeply, and spray professional chemicals to trap and kill young adults during the disease period.

The above are pro-agricultural network to bring carambola common pest control methods, carambola pest control methods are introduced here, want to know more, please pay attention to pro-agricultural network.