What are the common pests and diseases of orange trees?

Orange tree is a very common crop, in ordinary life we need orange tree to produce oranges for us, oranges have many useful effects for our body. However, in the process of planting orange trees, many pests can affect the development of orange trees, and there are many different kinds of common plant diseases, which are usually affected by bad environmental conditions or viruses. In the process of orange tree planting, if we find these pests that affect the development of orange trees, we need to effectively solve and control them.

Pest species: navel orange red spider.

It is a very common pest and disease, and when they attack orange trees, the leaves lose their luster and turn into defoliation. This insect rarely appears in normal times, but it is most severe in spring and autumn, which is a critical period to prevent this insect. In addition to the navel orange red spider, it is the navel orange red wax scale, which is a very aggressive insect.

When they attack the orange trees, the branches of the orange trees will wilt and induce other diseases, and this insect is seriously affected around May and June, and it is also a critical period for control.

Different pests also have a kind of insect called navel orange butterfly, which occurs more often in a year, and they will become silkworm pupae in winter.

It gradually became apparent around March. At this time we need to prevent this larvae from spraying some pesticides to reduce their birth. Of course, there are also navel orange night geese, which are more lush in summer and autumn, and they will make the leaves more curled and easy to affect the growth of orange treesGenerally, in July and September, it is necessary to spray some pesticides with higher concentrations to prevent and control.

Timely control is very important for the growth of orange trees, although there are so many pests that affect its growth, but if it can be controlled in time to reduce the damage of pests, it can reduce some obstacles in the process of growth. For different pests, we need to prescribe the right medicine, there are ordinary pests we need to manually catch or spray pesticidesIf some serious pests are more serious, we need to use heavier pesticides or increase the number of spraying.

Ground tigers, mole crickets, mites, leafminer moths, anthrax, huanglongbing. These are some very common pests and diseases, which should be controlled and dealt with in time.

There are scale insects, whiteflies, spider mites, leaf spot and rust, all of which are common to orange trees.

Common pests and diseases include gidding, weevil, noctuidae, beetle, bud maggots, popping skin worms, star beetles, etc.

Scales, rust ticks, red spiders, cankers, root rot, charcoal maggots, and pests and diseases need to be sprayed with insecticides when it rains.

The more common ones are huanglongbing, canker, anthracnose, insect pests, such as red spiders, noctuidas, etc., and we must choose the appropriate control methods according to different pests and diseases.

Scale insects, noctuidas, spider mites, anthracnose, leaf spot, these pests and diseases can occur, usually in the roots.

1. Huanglongbing.

At the beginning of the disease, the crown of the tree has one or more shoot leaves yellowing, and its symptoms have three different manifestations, the plant is weakened after being infected with the disease, the yield is reduced, and the fruit quality is poor.

Management and medication measures: While doing a good job in the management of the garden, focus on strengthening the prevention and control of the vector orange psyllid.

2. Ulcer disease.

After the fruit is infected with diseases, the appearance is extremely rough, the appearance is very poor, and it is easy to cause rot when the fruit is stored. If it is infected at the seedling leaf stage, it is easy to cause leaf loss and withering, resulting in the weakening of the tree.

Management and drug use measures: increase the application of microbial fertilizer (Kimler enzyme library fertilizer) and organic fertilizer to improve the disease resistance of plants during planting; For the old branches with diseased spots, the diseased spots can be scraped off, and the stone sulfur mixture is applied, and the trunk is sprayed with stone sulfur mixture dissolved oxygen, and the prevention and control effect is better.

3. Anthrax.

It mainly harms branches, leaves, fruits, and sometimes branches and flowers, and in severe cases, it leads to leaf litter, cracking of bark, and fruit decay, resulting in a dead harvest.

Management and drug use measures: strengthen cultivation management, increase organic fertilizer, and do a good job of pruning the garden, and improve the light and wind transmission conditions of fruit trees; Timely spraying protection.

Common pests and diseases of navel oranges include canker, scab, resin, umbilical yellow disease, red spider, rust tick, leaf miner, scale insect, pink sail envy lice, etc., so in the process of planting navel oranges, it is necessary to do the work of leaking sedan chair and good pest control in advance. 

Hello dear, nice to you, the common pests and diseases of orange trees are as follows: Pest species Navel orange red spider is a very common pest, when they attack orange trees, the leaves will lose their luster and turn into fallen leaves. This insect rarely appears in normal times, but it is most serious in spring and autumn, and it is a critical period to prevent this kind of bug.

In addition to the navel orange red barrage spider, it is the navel orange red wax scale, which is a very aggressive bug. Thank you for your inquiry, and I wish you a happy life [Eat Whale] [Eat Whale] [Eat Whale].

1. Foot rot.

Timely drainage, improve the light and ventilation conditions in the park, and strengthen the prevention and control of longhorn beetle and other trunk pests; Disease-resistant rootstocks such as citrus aurantium, citrus aurantium, and orange are selected, and disease-resistant rootstocks can be used to replace the rootstocks for susceptible plants.

2. Mites. Before and after flowering (March-May) and autumn (September-November) are the key periods for the control of spider mites: the population density of 1-2 leaves before flowering, and 5-6 leaves after flowering and autumn need to be controlled.

3. Aphids. The damage rate of new shoots is 25%, and it should be sprayed immediately. Commonly used drugs are acetamiprid, dimethoate, butylthioccarb, etc. Attention should be paid to the protection of seven-star ladybugs, large lacewings and aphid wasps, etc., and the eggs of overwintering insects should be cut off to reduce the number of pests.

4. Leaf miner moth.

The key period of prevention and auspiciousness is the summer and autumn shoot extraction period (early to mid-July). Timely erasure of sporadic summer and autumn shoots, combined with fertilizer and water management, to promote the new shoots of plant extraction strong and neat. Pharmaceutical prevention and control:

Spray when the new shoots are pumped to 1-2cm, spray once every 7-10 days, and spray 2-3 times in a row.

5. Longhorn beetles.

From May to August, the adults of the star beetle and the green orange beetle were manually killed at noon on a sunny day, and the adult beetle of the brown longhorn beetle was killed in the evening of Shenqing slag; Timely removal of eggs, hatchling larvae and pruning of infested branches; Soak cotton or cotton yarn with dimethoate and other insecticides to plug the wormholes, and then seal the wormholes with soil to poison the larvae.