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Master the characteristics of overwintering pests in orchards, adopt measures such as agricultural control, physical control, and chemical control according to local conditions, and pay special attention to the first application of spring pest control.
It is very important to use pharmacy in the early spring, and it is often inadvertent, which often causes serious pests and diseases in spring.
The main pest control activities in early spring orchards are: rot disease, dry rot, powdery mildew, rough skin disease, round rotten fruit disease and scale insects, apple aphid, aphids, leafhoppers and so on.
That is to say, insecticides should not only consider the treatment of worms, but also have certain wax-dissolving properties, that is, they must have a strong contact effect on scale insects and certain eggs and egg fragments; the fungicide should not only have a broad spectrum of sterilization. Spectrum, that is, a drug is more ill, and it has a systemic conduction effect to ensure excellent bactericidal effect even in the germination stage of fruit trees.
In addition, most pesticides and fungicides are sensitive to alkaline substances, and those who use alkaline water to dilute pesticides in production are everywhere. It is recommended to use the high-tech product of Singapore Lionong Company to dispense with the water. Optimize agricultural water quality, enhance adhesion, and improve permeability to fully exert its efficacy.
According to the test results of the Xi'an Fruit Friends Association in the northwest apple producing area in 2006, the early spring orchard sprayed a 5000-6000 times of Jin Lux + 800-1000 times of An Minle + 3000-4000 times of soft water, which can effectively kill the latent The pathogens and apple aphids, mites, scale insects, etc., greatly reduced the pests and diseases of the year.
It is worth mentioning that once the lurking rot disease breaks out, it is extremely harmful. The lighter cause the tree to weaken, the output is seriously degraded, the fruit is small and the quality is poor; the heavy one can make the tree die and even the orchard is destroyed.
In response to the outbreak of apple rot in the northwest region in recent years and the rough skin disease that has been rising year by year, Xi'an Fruit Friends Association has successively tested in apple producing areas such as Shaanxi, Gansu, Shanxi, Hebei and Henan, using 400-500 times of soft water. Jinshishi 200 ~ 300 times + Sde Koop 1000 times, the mixture is excellent in the control effect, whether it is cut or scratched after treatment, and the cost is low. At the same time, it is recommended to use a plastic sheet to flatten the tree when the disease is treated. After the treatment, the plastic spots are used to collect the lesions and burn them.
Farmers must pay attention to the early spring prevention and control of the orchard, reduce the occurrence of pests and diseases in the same year, and strengthen the tree, in order to increase production and income.
Source: Farmers Daily
In winter orchards, pests and diseases have entered the latent winter. At this time, the pests and diseases have no appearance, and the lack of awareness of the fruit farmers who have worked hard for one year has given up an excellent opportunity for prevention and control, which has created an opportunity for the occurrence of pests and diseases in the coming year.
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