There are aphids in the flowering period of orange fruit trees, how to treat them without affecting

1. Strengthen the management of orange orchards (trees): do a good job in the sanitary environment of orange orchards, clean up dead branches and leaves, reduce the living environment of hosts, and prune diseased and dead branches, dead branches and weak branches in a timely manner.

2. Strengthen fertilizer and water management: orange trees should fully meet the needs of various elements of fertilizer, apply more organic fertilizer, reasonably mix inorganic fertilizer and formula fertilizer, mainly soil fertilization, supplemented by foliar spraying; During the growth period (young trees), nitrogen fertilizer is the main fertilizer, combined with the application of phosphorus and potassium fertilizer, and thin fertilizer is applied frequently, so as to promote the vigorous growth of orange trees, neat shoots, and increase resistance. At the same time, it is necessary to do a good job in clearing the ditch of the orange orchard, so that waterlogging can be drained and drought can be irrigated.

I think you can spray some low-toxicity insecticides, so that you can kill the insects without affecting the results.

I feel that I can use a special aphid insecticide, which has no effect on the results.

Summary. This orange has common medicines for insects, as well as thiobenone, dacarin, alkyne, bromodifen, dimethyl and so on.

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. The spring shoot extraction stage, the young fruit stage and the fruit expansion stage are the main periods for rust lice control

The back of the spring shoots of the year first appeared rust-colored; When the density of insects on leaves or fruits reaches 2-3 per leaf, immediate control [Bixin] [Bixin].

When the orange tree blooms, there is a bug to spray what medicine.

This orange has common medicines for insects, as well as thiobenone, dacarin, alkyne, bromodifen, dimethyl and so on. 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.

The main periods for the control of rust lice are the spring shoot extraction stage, young fruit stage and fruit expansion stage: the rust color first appears on the back of the leaves of the spring shoots of that year; When the density of insects on leaves or fruits reaches 2-3 per leaf, immediate control [Bixin] [Bixin].

Now the orange tree has bloomed, the leaves of lice, what medicine can be used.

What medicine to use for insects in orange trees should be determined according to the specific insect infestation. If it is a red spider, you can use 50% mite instead of 1500 times of emulsifiable concentrate, 50% Tork 1500 times or 73% of 2000-2500 times of gite emulsifiable concentrate, etc., and the drug should be used alternately. If it is a rust spider, you can use 50% mites to treat 1500 times of emulsifiable concentrate, and 20% mites to die 1500 times of liquid.

If it is a leaf miner, you can use 5% imidacloprid emulsifiable concentrate 2000-3000 times.

When the orange tree blooms, there are insects on the leaves, which can be sprayed with pesticides. If it is an aphid, dicofol can be sprayed; If it is a cotton worm, you can spray deltamethrin or insecticide. These types of pesticides are relatively safe and will not affect the fruit hanging.

Okay, thanks.

You're welcome dear.

There are many reasons for the fall of flowers and fruits of orange trees, which may be caused by pests and diseases, and it is necessary to cut off the leaves of diseased branches and insects and spray orange trees for **. The fall of orange trees may also be caused by improper maintenance, and reasonable watering and fertilization are required in the later stage. During the maintenance period, the orange tree needs to be provided with sufficient nutrients for the growth of the orange tree's flowers and fruits.

1. Pests and diseases.

Orange trees fall off flowers and fruits during flowering and fruiting, which may be caused by pests and diseases, and need to be better managed. Orange trees are plagued by foot rot, insects such as aphids, red spiders and scale insects, and flowers and fruits fall when orange trees are attacked by pests and diseases. If it is caused by pests and diseases, cut off the leaves of the diseased branches and insects, and spray the orange trees for **.

2. Too much water.

Orange trees love moisture, but are not waterlogging tolerant and need moderate watering during the growing period. If the orange tree is not drained in time due to heavy rainfall, the root system of the orange tree will rot, and the flowers and fruits of the orange tree will fall off in the later stage. If it is caused by too much water, the later maintenance needs to strengthen management, and the amount of watering should be adjusted, and less watering in rainy weather.

3. Dense flower buds.

Orange trees generally bloom in the spring, and the weak buds and excess buds of the orange tree need to be removed before flowering, which can concentrate nutrients and is also conducive to the growth of flower buds. If you don't pick it off in time, the flower buds will be dense, the orange tree will not have enough nutrients, the flowers will fall off, and the fruit will also fall off in the later stage.

4. Insufficient nutrients.

Orange trees are evergreen trees that are hardy and need a moderate amount of fertilizer during the winter and before flowering to provide them with nutrients. If the fertilizer is insufficient, the orange tree will not be able to form flower buds in the next spring, and the orange tree will drop flowers and fruits in the later stage. If the fertilizer of the orange tree is insufficient, the orange tree should be supplemented with fertilizer in time for its growth.

When the water is large, it should be slightly drier when flowering, and strengthen water and fertilizer management during the fruit expansion period after flowering.

Summary. Kiss! Hello! <>

This orange has common remedies for insects, as well as thiobenone, dacarin, alkyne mite, bromodifen, dimethyl and so on.

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. The spring shoot extraction stage, the young fruit stage and the fruit expansion stage are the main periods for rust lice control

The back of the spring shoots of the year first appeared rust-colored; When the density of insects on leaves or fruits reaches 2-3 per leaf, immediate control [Bixin] [Bixin].

When the orange tree blooms, there is a bug to spray what medicine.

Kiss! Hello! We can spray crystal trichlorfon, chlordiasterin, etc., or we can use some tobacco soaked in water to spray [Bixin] [Bixin] <>

Kiss! Hello! <>

This orange has common remedies for insects, as well as thiobenone, dacarin, alkyne mite, bromodifen, dimethyl and so on. 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.

The main periods for the control of rust lice are the spring shoot extraction stage, young fruit stage and fruit expansion stage: the rust color first appears on the back of the leaves of the spring shoots of that year; When the density of insects on leaves or fruits reaches 2-3 per leaf, immediate control [Bixin] [Bixin].

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1. Scab disease.

Citrus scab is one of the important fungal diseases of citrus, which occurs in citrus growing areas in China. Citrus scab has a characteristic: it is usually the most susceptible to the disease before the new shoots and young leaves, and the young fruits are the most susceptible to the disease shortly after flowering.

This disease is mainly harmful to young shoots, after the young fruit is infected, the fruit surface is densely covered with brown brown spots and then expands on the peel to form yellow-brown conical, lignified nodulous protrusions. It leads to early shedding, and the abnormal development of the damaged fruit in the later stage, making the fruit shape smaller, thicker skin, sour and even deformed. It can also damage the calyx and petals, and in severe cases, it will cause fruit deformity, which will lead to reduced yield.

2. Ulcer disease.

Canker disease can be transmitted and transmitted with the help of wind and rain, insects, branches and leaves, and in many cases, it can even be transmitted by people! The pathogen is a bacterium that affects citrus leaves, shoots and fruits. Citrus canker can also be a fatal blow to citrus trees.

Seedlings and young trees are particularly seriously damaged, which will cause leaf loss and dead shoots, which will affect the tree potential. The fruit is seriously damaged, and the light one has disease scars, forming unsightly lesions on the citrus, which directly affects the appearance of the citrus, making the citrus ugly to worthless, and not resistant to storage, and rotting. Moreover, citrus canker disease will be infected for life, as long as the conditions are suitable and do not pay attention to prevention and control, it will definitely attack again, and it will not be able to **.

Summary. 1. Protect and utilize the natural enemies of orange orchards and control the damage of orange aphids.

2. In the season of high temperature, fast reproduction and large number of natural enemies, scientific application of pesticides should make full use of the control effect of major natural enemies such as ladybugs, aphid flies, and aphid cocoon wasps.

Fourth, the prevention and treatment of pharmaceuticals.

1. The general principle of pesticide control of citrus tree aphids is "the premise that the natural enemies in the orange orchard are not enough to control the aphids".

2. The period of pesticide application is the summer shoot extraction period and the autumn shoot extraction period, and the key part of the pesticide application is the new shoot.

3. Under normal circumstances, it can be controlled together with psyllids, leaf miners and other pests at the shoot stage, and the budding stage.

Orange trees bear young fruits, and there are aphids.

1. Protect and utilize the natural enemies of Douze orange orchards, and control the aphids of oranges. 2. In the season of high temperature, fast reproduction and large number of natural enemies, scientific application of pesticides should make full use of the control effect of major natural enemies such as ladybugs, aphid flies, and aphid cocoon wasps. Fourth, pesticide control 1, the general principle of pesticide control of citrus tree aphids is "in the orange orchard natural enemies are not enough to control aphids as a premise".

2. The period of pesticide application is the summer shoot extraction period and the autumn shoot extraction period, and the key part of the pesticide application is the new shoot. 3. Under normal circumstances, it can be controlled together with psyllids, leaf miners and other pests at the shoot stage, and the budding stage.

Spray avermectin + phosphine at the bud stage, one drug has multiple effects.

Dear, I hope I can help you.

4. When the occurrence of aphids is small in spring, cut off the new shoots in time, which can effectively control the spread and is suitable for young tenants of Xianheng tree orchard. Using the yellow taxaxis of citrus tree aphids, yellow boards can be hung in the citrus orchard to trap aphids, and the hanging density is suitable for 20-25 vertical yellow boards. 3. Under normal circumstances, it can be controlled together with psylli, leaf miner moth and other pests at the tip stage, and avermectin + phosphine can be sprayed at the budding stage, and one drug has multiple effects.

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