How should pesticides be sprayed during the flowering period of citrus? Are there any precautions wh

When citrus blooms has a lot to do with temperature and sunshine, but also humidity, soil, and topography (back to the north and sunny sides) also have a direct impact on flowering. Depending on the climate, the timing of flowering is not entirely due to the climate. The fertilizer is mainly fast-acting compound fertilizer, and the proportion of nitrogen fertilizer is appropriately increased.

According to the size and vigor of the tree, each plant can be applied about one pound of compound fertilizer, and if the tree is weak, about one pound of urea can be added. In this spring of warm flowers, although a large part of the nutrients required for the growth of spring shoots and citrus flowers are the nutrients accumulated in the previous year, but this year's situation is different from previous years, many citrus are sold late this year, and even in the first half of March, the fruit trees have been pruned by young trees: due to the large number of fruits in the previous year, a large amount of nutrients are consumed, resulting in less shoots and weak trees.

Pruning should be done with fewer leaves, mainly stubbing and shrinking fruitless fruiting branches, and cutting off those shade branches that are weakly grown, have few leaves, and are too slender and long.

<> we need to prune the branches to balance the vegetative and reproductive growth of the citrus tree. For citrus trees that have reached adulthood, we need to keep a certain number of vegetative branches, so that we can maintain the yield of the current year and lay the foundation for the next year's yield. Reasons for the lack of citrus fruits:

In our local area, there were a few snowfalls last winter, the weather was relatively cold, and in the spring of this year, after the temperature rose, in order to promote the recovery of fruit trees as soon as possible, most fruit farmers will apply nitrogen fertilizer to fruit trees, resulting in citrus branches and leaves, nutrients Regulator: After the citrus is picked, it will be fertilized in time to restore the tree potential, meet the nutrients required by the tree body at the flowering and budding stage, ditch fertilization + water fertilizer, buried commercial organic fertilizer Decomposed farmhouse fertilizer + balanced compound fertilizer + medium and trace elements Calcium, magnesium and phosphorus, drenching balanced compound fertilizer + seaweed must be sprayed in time, Otherwise, it is easy to cause the whole orchard to be like this, the bud stage must be controlled is the bud maggot, he will eat the flower bud, if there is no flower bud, then how to pollinate can not pollinate, hanging fruit is definitely impossible.

We should spray these pesticides on the roots or leaves of the citrus, so that the citrus can be well protected and can also have a good yield.

You should add some water to the pesticide to spray, and you must be careful not to spray too much when spraying, which will cause some damage to the soil and is likely to lead to soil pollution.

Anthracnose in citrus is a fungal disease, and it is very important to spray methyl tobuzin + prochlorazine evenly on the entire canopy of citrus trees for early prevention. For general citrus canker, scab, brown spot, Chunleimycin, difenoconazole, copper thiazole, zinc thiazole, tebuconazole, etc. Spray after mixing more than two drugs, add pesticide synergists at the same time, and master spraying at the bud stage, it is best to avoid the full flowering period.

There are many kinds of pests and diseases during the flowering period of citrus, and the common insect pests are psyllids, spider mite, flower bud maggots, etc. Common diseases generally include anthracnose, canker, brown spot, scab and other diseases, which will have a very bad impact on the yield and quality of citrus. Citrus psyllid is the natural vector of citrus huanglongbing, the harm to citrus is very great, once citrus huanglongbing appears, there is basically not much way to save, citrus huanglongbing is a devastating disease.

Early prevention and control of psyllids is an effective way to prevent citrus huanglongbing, which can be sprayed in advance with halodioxapyr, imidacloprid, spiromel ethyl ester + ethoxylated vegetable oil, etc. When red spiders occur, acaricides such as avirotofen can be added.

Fluoroxamethonil, imidacloprid, spiromethane ethyl ester + ethoxylated vegetable oil can be sprayed in advance for prevention. Therefore, in the citrus bud stage, we should also pay attention to prevention and control, and pay attention to the observation of spraying drugs in advance to achieve the purpose of prevention and control.

Share technology, happy fruit farmers.

1.Citrus before flowering to play good value retention + fruit phosphorus balance group + high boron, diluted and sprayed on the fruit trees, sprayed once every 7 to 10 days, sprayed twice, can promote better growth and germination of spring shoots, but also conducive to the development of flower buds.

2.In addition, if you want it to bloom and set fruit better, you should also pay attention to the management of the flowering period.

3.It is recommended to apply an appropriate amount of top dressing and phosphorus and potassium fertilizer before flowering, which can improve the quality of flowers and increase the fruit setting rate.