How to manage grape seedlings? what kind of medicine does grape drill worm use?

Grape is a common fruit, its skin is very thin, taste sour and sweet moderately, so it is deeply loved by people. Now many people like to grow grapes, but in the process of planting, grapes may also be attacked by insect pests, the most common is drill worms, so what should we do when this happens?

How to manage grape seedlings

1. Clear the garden: the main purpose of cleaning the garden of grape noodles is to thoroughly clean up the branches and leaves left after picking grape seedlings in the previous autumn, as well as some weeds and grape seedlings falling off after illness. After cleaning, you can bury the rubbish deeply or burn it directly.

2. Watering: watering is very important, especially in arid areas, where the climate is rainy and the soil moisture is high, depending on the situation. If the soil is moist enough, you do not need watering. This can promote the shoot of new grape seedlings to be stronger.

3. Spray: when the winter buds of grape seedlings are about to germinate, spray Pomedo stone sulfur mixture three to five times with 200 times pentachlorophenol sodium, and on the tree and on the ground. The post and wire were sprayed thoroughly, and the insecticide was sprayed once in the park where green bug bug occurred before sprouting to leaf spreading.

What kind of medicine do grape heart worms use?

The main results are as follows: 1. Spraying to control the heart worm must be carried out in the peak period of adults and the hatching period of larvae. You can choose 1.8% Efotin EC 2500 to 3000 times, Bt wettable powder 800x solution, should be applied early or selected, or 21% kill 2000 times EC, 20% chrysanthemum or 10% chrysanthemum horse EC 1000 times, or 2.5% kungfu EC 3000 times.

2, or 10% Noble suspension 2000 times, or 20% fenvalerate EC 3000 times, or 5% Lefulin EC 3000 times, or 10% Uranus EC 3000 times, or 5.7% Baishu EC 2500 times, or 2.5% dichloromethyl EC 3000 times, or deltamethrin 3 suspension 3000 times.

How to trim grapes

1. Pruning long vines. The method of double vine renewal is generally used in long vine pruning. Under the fruiting mother vine, a vine was selected as the regeneration mother branch, and the regeneration mother branch retained 3 healthy buds of 2mur. as a result, the mother vine retained 6mur12 buds to promote the emergence of new shoots in the period, which could blossom and bear fruit in the same year, and renew the two new shoots extracted from the mother vine (if three should be removed), such as inflorescence should be removed, in order to reduce nutrient consumption and promote branch tissue enrichment. In the next winter pruning, all the fruiting mother vines of the same year were cut off, and the upper shoots of the renewed mother vines still retained 12 buds, which were used as the fruiting mother vines, and the lower shoots retained 3 buds as the regeneration mother vines. When selecting and renewing the mother vine, we should pay attention to choosing as close to the trunk as possible in order to control the speed at which the resulting site rises year by year.

2. Pruning short vines. First cultivate a vine of about one meter, so that several main vines are extracted from the main vine, and when pruning in winter, each fruiting mother vine will leave 2 Mel 3 buds. After sprouting in spring, the upper branch is selected as the fruiting branch and the lower branch is used as the renewal branch to prevent it from bearing fruit. When pruning in winter, all the fruiting branches were cut off, leaving 2 Mel 3 buds in the regenerated branches.

3. Pruning medium vines. The method of medium vine pruning and renewal is basically the same as that of short vine pruning, but the difference is that the mother branch retains more buds, generally leaving 4 Mel 5 buds. In addition, dense branches, weak branches, pest branches and dry and withered branches should be cut off when pruning.

Fertilization methods in different growth stages of grape

1, sprouting fertilizer: generally applied before grape germination, this time mainly with nitrogen fertilizer, the purpose is to promote neat germination, thick leaves and large and strong inflorescences. If the trees are too strong and the spring is not very dry, the fertilizer and water can be saved this time so as not to cause new shoots to grow.

2. Enlarged and fat: after the grape sits, the fruit is as big as mung bean and applied when it is as big as soybean at night. This time, nitrogen is the main fertilizer, and phosphorus and potash are applied at the same time. High nitrogen compound fertilizer or ordinary three-element compound fertilizer can be applied, and urea and other nitrogen fertilizer can be added as appropriate. The amount of fertilizer should be large this time, which can account for about 50% of the amount of chemical fertilizer applied in the whole year.

3. Ripening and fertilizing: it is carried out in two stages. 20-30 days before ripening, high potassium water-soluble fertilizer was applied, and once more fertilizer was applied when the grape berries began to soften and before coloring. Fertilization is very important this time. After applying expansive fertilizer, many fruit growers no longer apply ripening fertilizer, or cause fruit color change (commonly known as water pot disease) or lack of fertilizer, grape resistance is poor, easy to get disease, high yield but not good harvest. Or poor coloring, low sugar content, not a good price, and so on. Can be directly applied to functional fertilizer, a large number of elements water-soluble fertilizer color (recommended high phosphorus and high potassium type, while containing trace elements boron and zinc).

Grape drill heart disease is the most common use of drugs to control, its medicinal methods are also many, before spraying must do a good job of dilution. After planting grape seedlings, to strengthen the cleaning work of the park, but also need timely watering to ensure its growth.