What pesticides can be used to prevent the disease of wolfberry trees?

Green onions have gray mold, it is recommended to use iprodione + grammedan formula, the effect is good, of course, there are many products for the prevention and control of gray mold, you can buy it in the local regular technical agricultural material store, and use it under their guidance. This method is, when transplanting green onions, 6000 grams of clothianidin granules are applied, which can not only effectively control underground pests such as maggots, but also effectively control the occurrence of thrips.

<> downy mildew of green onion is caused by the infection of downy mildew in the fungus, and the peak incidence of the disease is from April to May and October to November in the Yangtze River Basin, while it is from May to June and September to October in North China and Northwest China. The production temperature of the sporangia of the fungus is 13-18, the optimal temperature is 15, the relative humidity of the air is more than 85%, and the optimal temperature for germination is about 10. Continuous cropping land, low-lying, poor drainage, over-dense cultivation, flood irrigation, weak growth of green onion fields are prone to occur.

At the onset of the disease, it mostly spreads upwards from the tip of the leaf or the middle of the peduncle, with small purple-brown spots, slightly concave, and black-brown pink cream for a long time when wet. The lesion is oval or spindle-shaped, dark purple, and has concentric rings. After the lesions are combined, they surround the leaves and peduncles, causing inverted folding, and in severe cases, a large number of leaves die and dry up.

Damage to the bulb causes semi-wet rot, shrinkage and blackening. The flower of the seed collection plant is damaged, which affects the maturity or non-fullness of the seed.

Allium rust mainly affects leaves, peduncles and green pseudostems, and the diseased part is a primary spindle-shaped or oval-shaped slightly raised blister, and then the epidermis ruptures and turns outward, emitting orange-yellow powder. There is a yellow halo around the lesion. In the later stage of the plant, the diseased part forms black-brown, oblong, slightly raised blisters.

In severe cases, the leaves are covered with blisters, and the diseased leaves are yellow and die. The affected peduncle turns reddish-brown, and the flower buds are shriveled or withered and fall off.

This is a fungal disease, called snake's eye disease, early invasion of leaves, later invasion of fruits, is the most common disease of wolfberry, in the early stage of the onset of foliar spraying methyl ludifenazin (methyl tobuzin) plus mancozeb or carbendazim plus Fumei double foliar spray control, generally every 5 7 days spray once to control the disease! This disease lies in early prevention and control, and try to avoid drugs one month before the fruit ripens in the later stage, and consider the problem of pesticide residues!

Goji berry black fruit disease, which damages flower buds, flowers and green fruits. Can be sprayed with 1:1:100 Bordeaux liquid during the fruiting period; Immediately after the rain, spray 600 times of 50% antibacterial extra warm powder, and the effect is better.

Strengthen field management, prune diseased branches and leaves in winter, collect the residual branches and leaves on the ground, burn them intensively or bury them deeply, and then spray Bordeaux liquid in the rainy period for prevention.

Summary. If the wolfberry tree is a worm, it is necessary to prescribe the right medicine according to different insect pests. If it is aphids and galls, you can use dimethoate emulsion to spray them.

The harm of fruit flies is greater, and the tree tray should be sprayed with phosphine emulsifiable concentrate in time. If negative mud worms occur, pesticides such as dichlorvos should be used to kill the insects.

If the wolfberry tree is a worm, it is necessary to prescribe the right medicine according to different insect pests. If it is an aphid and a gall, you can use dimethoate emulsion to spray them. The harm of fruit flies is greater, and the tree tray should be sprayed with phosphine emulsifiable concentrate in time.

If negative mud worms appear in the family or fruit, pesticides such as dichlorvos should be used to kill insects.

The leaves of the tree blister, then the leaves wilt.

What's with. Galls. Cut off the gall-infested leaves and burn them.

If it is planted in the field, the control method: 1. Combined with early spring pruning, cut off the branches with overwintering pupae before the wolfberry silk moth feathers in late April in spring. During the activity period of wolfberry silk moth larvae, the method of manually removing wolfberry silk moth larvae on the damaged branches was used to kill the larvae in the damage, reduce the damage rate, and reduce the insect population in the field.

Wu Chongmeng 2, clean up the garden: after the end of wolfberry picking in autumn and when the wolfberry is pruned in spring, remove the dead branches and fallen leaves in the field, and return to the field after concentrated burning outside the field to eliminate the overwintering pupae. In order to reduce the overwintering base, reduce the number of spring insect sources, and reduce the degree of harm.

3. Physical control: Starting from late April during the emergence period of wolfberry silk moth adults, solar insecticidal lamps are hung in the field to trap adults at night and reduce insect populations in the field. 4. Pheromone trapping:

Starting from the end of April during the active period of the wolfberry silk moth adults, combined with the trapping effect of the solar insecticidal lamp, the adult insects were caught in the field cavity bridge, the female adults were selected, and the female adults were put into the pre-made traps, and the female pheromones secreted by the female adults were used to trap the male adults and reduce the insect pests in the field. 5. Combined with the prevention and control of aphids, gall mites and other pests during the larval occurrence period, gastric poison and contact killers are sprayed to poison the larvae.

Summary. Herbicides are generally divided into incidisor and selective herbicides according to their functions. Goji berries, generally fine roots, coarse roots are mainly distributed in the 20 40 cm soil layer, wolfberry tree planting is best to choose manual weeding, can not use herbicides.

It can be cultivated and weeded 1 time in the middle of the month.

Because any"Herbicides"It will cause some unnecessary damage to the plant or soil layer. If herbicides must be used, they can be used"Extermination"Herbicides (contact herbicides).

What pesticides are good for weeding in the wolfberry field, it is not harmful to the tree.

Hello, I am sorting out the answers according to your questions, please wait a while Herbicides, generally divided into incidal and selective herbicides according to their effects. Goji berries, generally fine roots, coarse roots are mainly distributed in the 20 40 cm soil layer, wolfberry tree planting is best to choose manual weeding, can not use herbicides. It can be cultivated and weeded 1 time in the middle of the month.

Because any"Herbicides"It will cause some unnecessary damage to the plant or soil layer. If herbicides must be used, they can be used"Extermination"Herbicides (contact herbicides).

There is currently no such pesticide.

Lycium barbarum is a plant of the genus Lycium in the Solanaceae family.

Lycium barbarum is a multi-branched shrub, up to 1 meter tall and up to more than 2 meters when cultivated; The branches are weak, archate, curved or drooping, pale gray, with longitudinal stripes, the spines are up to 2 cm long, the spines of the leaves and flowers are long, and the tips of the twigs are sharply pointed into thorns. Leaves papery or slightly thicker in cultivators, single leaves alternate or 2 to 4 in clusters, ovate, ovate-rhomboid, oblong, ovate-lanceolate, apex acute, base wedge-shaped, up to 5 cm long, up to cm wide, growers larger, up to 10 cm long, up to 4 cm wide; The petiole is up to 1 cm long.

The flowers are solitary or twin in leaf axils on long branches, and clustered in the same leaf on short branches; The peduncle is 1 to 2 cm long and gradually thickens towards the apex. calyx 3 to 4 mm long, usually 3 or 4 to 5 lobes, lobes more or less marginally hairy; corolla funnel-shaped, 9 to 12 mm long, pale purple, tube abruptly enlarged upward, slightly shorter than or nearly equal to eaves lobes, 5 deeply lobed, lobes ovate, apex rounded and obtuse, flattened or slightly recurved outward, margins marginally hairy, basal ears distinct; The stamens are slightly shorter than the corolla, or the corolla protrudes due to the abduction of the corolla lobes, and the filaments are densely covered with a circle of hairs near the base and intertwined into an oval hairy tuft, and the inner wall of the corolla tube at the same height as the hairy bush is also densely covered with a ring of villi; The flower column is slightly protruding from the stamens, the upper end is arched, and the stigma is green.

The berries are red, ovate, and can be oblong or oblong in growers, pointed or obtuse at the apex, 7 to 15 mm long, and up to cm long and 5 to 8 mm in diameter. The seeds are flattened kidney-shaped, up to 3 mm long, yellow. The flowering and fruiting period is from June to November.

Goji berries: sweet, flat. Goji leaves: bitter, sweet; Cool sex.

Because it is drought tolerant, it can grow in sandy land, so it can be used as a shrub for soil and water conservation, and because of its salt tolerance, it has become a high-quality tree species in saline-alkali land.

The wolfberry tree is graceful, the leaves are emerald green, the flowers are light purple, the fruits are bright red, it is a good bonsai ornamental plant, and there are some wolfberry ornamental cultivation.

Edible value. Young leaves can be used as vegetables, in Guangdong, Guangxi and other places, wolfberry sprouts have been very popular, can be bought in the vegetable market.

Goji berries can be processed into various foods, beverages, health wines, health products, and so on. Goji berries are often added to soup or porridge.