Food Flavorings ,Dry Golden Onion Powder,Organic Onion Powder,Black Garlic Powder Shanghai J.Shine Co.,Ltd , https://www.jshinechem.com
First, stalk rot The disease mainly damages 1-2 years old seedlings. Under high temperature conditions, it is the main cause of attracting stalk rot. The seedlings are damaged at high temperature, the disease resistance is weakened, the growth of the bacteria is rapid, and the disease is invaded from the wounds of the seedlings. In addition, the nursery is low-lying water, and poor growth of seedlings is more likely to occur. In the period of June-August, when the weather was hot and dry, the disease became heavy.
Early sowing, to increase the degree of lignification of seedlings before the advent of the high temperature season, strengthen resistance to stalk rot, and disinfection of nursery soil, appropriate shading, timely irrigation. In the early stage of disease, 50% thiophanate-methyl 1000 times was used for prevention and treatment.
Second, mildew disease damages the ginkgo seed during storage, and it spreads when the temperature is around 20°C and the humidity is high. The incidence of immature or broken seeds is high. Seeds must be fully matured and harvested while avoiding damage to the seed coat. Before storage, it should be fully dried, picking up seeds and seeds, keeping the storage room at a low temperature, and paying attention to ventilation. Before storage, soak in seeds with 0.5% potassium permanganate solution for 30 minutes, or disinfect with 10% diluted with 40% formaldehyde.
3. The pathogens of leaf blight mainly overwintered on deciduous trees and spores were formed in March of the following year to infect new leaves. Seedlings are onset in early June, and the onset of disease is August-September. Usually the incidence of seedlings is higher than that of big trees.
Strengthen management, eliminate fallen leaves, and apply fertilizer properly. Reasonably planting tree species to avoid interbreeding with Metasequoia, pine, tea, and grapes. Saplings and big trees were treated with 40% carbendazim 500 times in the early stages of early July. The seedlings were controlled from about the beginning of June to the end of August. 0.5% potassium dihydrogen phosphate and 0.2% urea were added simultaneously. Spray, strengthen its resistance.
4. Dry-cockroach pathogens invade the backbone or shoots from the wound and form irregular lesions on the smooth bark. With the spread of wind, rain, insects and birds, new lesions emerged in the trunk after May and the peak period of disease was from July to September. Protect trees, avoid trauma, strengthen vigor, and increase resistance to disease. Elimination of seriously ill plants and diseased branches and timely destruction, lesions on branches or branches, after scraping with 10% alkaline water smear, the effect is very good.
5. The ginkgo large silkworm moth is a large moth and occurs in 1 generation in 1 year. The larvae feed the leaves. Newly hatched larvae have a habit of colony. The 1-2 instar larvae can feed on the leaf margins, but the food intake is small. After 4th instar, the damage is dispersive, the food intake increases gradually, and the 5th instar age falls into the gluttony period, and all the leaves can be eaten.
In August-September, blacklights were used to trap the adult. The cluster damaged leaves were removed before larvae 3rd instar. In severe cases, spray 2% deltamethrin 2500 times or 90% trichlorfon 1500-2000 times in the young larvae.
Sixth, peach aphid 1 generation occurred in 1 year. After hatching, the larvae first crawl for a short distance, and then enter into the nucleus damage. The nucleus will eat all or only a part of the nucleus. One larvae will only feed 1 seed. When the first generation of adult eclosion was treated with 80% dichlorvos 1000 times. The hatching period of eggs can be sprayed with 40% Caesaresporum 1000 times, 7 days after the second spray, to kill eggs hatch larvae.
Seventh, the dead leafworm moth takes the fruit sap with the adult, the ginkgo fruit falls off within 3-10 days. Eggs are produced on the back of the leaves of the host, such as Tongcao and the Ten Major Achievements. Eradication of host plants such as grasses and ten achievements around Ginkgo biloba. Spraying 50% trichlorfon 500 times from the beginning of May to the middle of June, and 10 days after the administration of the drug, the effect of the evening medication is best.
Eight, taro adult nymphs, nymphs are damaging seedlings and adult tree leaves, sucking juice on the back of the leaves, after consuming leaves quickly bleed, severe leaf white, leading to early defoliation, drought conditions suitable for thrips, As the temperature rises, it turns from seedlings to big seedlings and big tree damage. Puma is poor in drug resistance, and it is easy to receive the effect of spraying in time. In the high-frequency period from June to August, 80% of dichlorvos were used to prevent and treat 1000 times of liquid, and even sprayed twice, with good results.
Nine, ginkgo ultra-small roller leafworm larvae into the shoots damage the shoots that year, causing dead branches, fallen leaves, fruit drop. The worm has a hi-light characteristic, which occurs around the edge of the forest more than in the forest. The degree of occurrence is close to the temperature. With increasing altitude and latitude, the annual uniform temperature decreases, and the population density decreases. Adults were treated with 2.5% of deltamethrin 2500 times before emergence. In the early stages of larval hatching, the damaged shoots were sprayed with 800 times 80% dichlorvos EC.
Ten, soybean meal larvae into the nuclear damage, and have the habit of fruit damage. In severe cases, the nucleolus are eaten, leaving only insects in the seed nucleus, which seriously affects the yield and quality of the ginkgol seed. Because the larvae drilled into the soil, their occurrence was closely related to the soil moisture and texture. Rainfall was more frequent and the soil was lighter. Don't plant the rest of the legume plants to reduce the breeding damage caused by soybean meal. In the adult period, 50% dichlorvos or 90% trichlorfon was sprayed 800 times, and the second time after 10 days, it had a good effect.
Ginkgo biloba, its seeds that is white fruit can be used as medicine, there are nourishing yin and kidney, lungs and cough, asthma and insect control effect, common pests are ginkgo stalk rot, mildew disease, leaf blight, stem borer, ginkgo silkworm moth, peach aphid, Leafworm, Ginkgo leaf roller moth, cardamom, tea-yam, etc.