What is the prevention and control method of carnation gray mold?

Carnation is known as the mother flower ornamental flowers, is a perennial herbaceous plant flowers, generally as a fresh cut flower, its economic benefits are relatively high, if by the invasion of gray mold, it will inevitably affect its ornamentality, so it is necessary to prevent and control the carnation of gray mold. Only timely prevention and control can ensure that the stems, leaves, flowers and petals of carnations are not invaded, and their ornamental value and economic value are protected. The following is a brief sharing of the prevention and control methods of carnation gray mold:

The more serious pests and diseases that harm carnations include rust, Fusarium wilt, leaf spot, gray mold, blight, thrips, etc., and the correct identification and effective control of these pests and diseases has become one of the more critical links in production. First, the prevention and control before transplanting, before transplanting, we should pay attention to the disease resistance of carnation seedlings, cultivate strong seedlings, use rain-sheltered breeding, so as not to infect the pathogens by rainwater, and pay attention to the improvement of the ventilation environment, the suitability of the light is very important, before transplanting to make the seedlings grow robust, which is conducive to reducing the occurrence of gray mold, and at the same time can also use drug prevention and control, before transplanting, you can spray the seedlings with an appropriate amount of aqueous solution of Suclin or promehydrate.

Second, the prevention and control of the flowering period, the flowering period should pay attention to watering, watering should pay attention not to water the flowers, so as not to cause the occurrence of gray mold, the soil should also be kept to avoid waterlogging, fertilization should be more phosphorus and potassium fertilizer, less nitrogen fertilizer. During the flowering period, an appropriate amount of mixed solutions of anti-drop, promethine and methamalene can be applied to the flowers to prevent the occurrence of gray mold.

Third, the prevention and control of the fruiting period, after the aroma of carnation hits the flowering period, it will enter the fruiting period, during which we should also pay attention to the prevention and control of gray mold, proper pruning, increase ventilation, proper fertilization and nutrition, and promote the growth of carnations. If it is used for drug control, you can spray the fruit with an appropriate amount of aqueous solution of Huiduofeng, Botrytis and Shijiale.

1) Reduce humidity, 2) Fertilizer and water management, improve traditional fertilization methods, and increase phosphorus and potassium fertilizers.

3) In the season with large temperature difference, such as spring and autumn, pathogenic spores are easy to germinate, so we must pay attention to ventilation, light and ventilation.

4) If it is found that the disease occurs early, cut off the diseased flowers and branches in time and destroy them in a centralized manner.

5) After the onset of caryophyllus cultivated in the open field, the traditional spray method ** open-air cultivation of carnations, timely spraying sterilization after the onset of the drug can appropriately increase the dosage, but not too much to prevent the occurrence of drug damage and resistance, in order to prevent the emergence of drug resistance, advocate the rotation of pesticides or compound use.

You should buy a plant-specific insecticide, spray it evenly on the leaves of the plant, and do not water it during the medication, otherwise it can be used several times if it has no effect.

Choose disease-resistant high-quality varieties, reduce humidity, fertilizer and water management, improve traditional fertilization methods, and increase phosphorus and potassium fertilizers.

After the flower buds, petals and stems and leaves are covered with gray mold, brown water-stained lesions appear, causing petals to rot, flower buds to fall off, stems and leaves to die, susceptible flower buds can not open, infected flowers lose their color, and the disease is serious when the temperature is high and the humidity is high.

Spray 1000 times potassium permanganate aqueous solution, or 1000 times sodium bicarbonate (baking soda) aqueous solution, or 25-30 times dry and pure plant ash leaching clarification solution once a month, and evenly spray all leaves, flower buds and petals, so that it is advisable to start with water droplets dripping downward, which can effectively prevent and control the occurrence and damage of carnation gray mold, and protect stems, leaves, buds and petals.

Thanks for the reference.

Common diseases of carnations include calyx rot, rust, gray mold, bud rot, and root rot. It can be used to prevent and control calyx rot with zeb zinc, and 5 oxidized rust to prevent rust. In the prevention and control of other diseases, zebze, carbendazim or clobenidan are used for soil treatment before planting.

When red spiders and aphids are infested, they are generally killed with 1000 times of 40% dimethoate emulsion.

Carnations are important cut flower materials and can also be used to decorate garlands, flower baskets, bouquets, etc. Because of its long flowering period, delicate flower shape, light fragrance and elegant, it is quite favored by people, dwarf varieties can be used for potted ornamentation, and the flowers can also be flavored.

Symptoms: This disease mostly occurs on the petals and buds of the flowers, and occasionally on the stems and leaves. After the petals are susceptible, at first the edges of the petals appear light brown water-soaked, and gradually most of the coarse petals are invaded and multiplied by gray fungi, at this time, if the temperature is high and the humidity is high, it is easy to cause decay.

When the disease occurs on the flower bud, it appears as a water-soaked irregular spot, and gradually decays, so that the whole flower bud cannot open.

Prevention and control methods: pay attention to indoor ventilation and light transmission, reduce humidity;

Diseased plants are found and removed in time; Spray 800-1000 times of the fungus shark every 15 days or so, and spray 2-3 times in a row, which has an effective and good control effect.

FYI.

Once a month, the foliar surface is sprayed with 1000 times potassium permanganate water-soluble feast solution, or 1000 times Zhipai silver sodium bicarbonate (baking soda) aqueous solution, or 25-30 times dry and pure plant ash leaching clarification solution, and all leaves, flower buds and petals are evenly sprayed and wetted, so that it is advisable to start with water droplets dripping downward, which can effectively prevent and control the occurrence and damage of carnation gray mold, and protect stems, leaves, flower buds and petals. If there is a lot of rain, high temperature, high humidity, and gray mold appears on the stems and leaves, flower buds and petals, it is necessary to spray 2-3 times of 1000 times of Sukelin, 1500 times of Shennongsu chelate, 300 times of potassium dihydrogen phosphate mixed fertilizer, or 1000 times Pythium, 1000 times Zhuangfengyou, 500 times of high-efficiency biological phosphorus and potassium fertilizer mixture for control, spraying once every 7-10 days to kill the bacteria and make the diseased parts quickly return to normal growth, promote the strengthening of stems and leaves, flower buds and petals, and promote flowering.

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