Scale insects are the most common pests, often clustered on branches, leaves, and fruits. They absorb plant sap for a living, and in severe cases, they cause wilting or death of the whole plant. The secretion of scale insects can also induce coal fouling, and the scale insects are inserted into the plant tissue for feeding for a lifetime. Not only plundering plant sap, destroying plant tissues, causing tissue fading and death; but also secreting some special substances to make local tissue deformity or form tumor sputum; some species are still transmitting plant virus diseases, which is extremely harmful. The method of scale insects.
First, prevention and treatment methods
Strengthening plant quarantine: Under natural conditions, scale insects have small activity, and their ability to spread and spread is limited, and the distribution has certain limitations. However, with the development of production, the exchange of flowers and transportation is frequent, and the opportunities for man-made and long-distance transmission of pests and diseases are increasing. The quarantine work stipulates that flowers can be transported without dangerous pests and diseases (including various reproductive materials). If pests and diseases are found, various effective measures should be taken to eliminate them and prevent further spread.
Second, artificial control
In the process of cultivating flowers, it is found that there are individual branches or leaves with scale insects, which can be gently brushed off with a soft brush or combined with trimming to cut off the insect branches and insect leaves. Ask to brush, cut, concentrate, and don't throw it.
1, garlic
Use 2 pieces of garlic to smash, add 2 kg of water, soak for half a day, clarify and spray the affected part, spray once every three or four days, three times in a row, you can kill all the red spiders and scale insects. In this way, not only can the insects be killed, but also the spread of the bacteria can be inhibited.
To treat powdery mildew and black spot disease in the rose season, take 30 grams of garlic, add 500 grams of water after smashing, mix and filter, take the filtrate and spray the leaves, once a day, even spray 3 to 4 times, you can also use a brush or toothbrush The garlic is applied directly to it. Sprinkle the garlic in the potting soil and kill the cockroaches, ants and nematodes.
2, cigarette head
Use 30 cigarette heads, add 500 grams of water to soak for a day and night, add a little soapy liquid after filtration, spray to the affected part, once a day, 3~5 times, you can kill the nymphs of scales and scale insects.
3, wind oil
Dilute 600~800 times with wind oil, spray the diluted solution several times to kill aphids, red spiders and scale insects, and whitefly.
4, pepper
Use 50 grams of pepper, add 500 grams of water in a pot and heat to boil, and knead into about 500 grams of liquid. The liquid can prevent whitefly, aphids and scale insects, and is sprayed with water 6 to 7 times when applied, and sprayed once every 3 to 4 days.
5, citrus peel
Soak the citrus peel with water for about 10 times for 24 hours, and take the filtrate to spray the plants to control the aphids and red spiders. If the flowers are watered with the filtrate, the nematodes in the soil can be controlled.
6, rice vinegar
Rice vinegar is rich in organic acids and has a good inhibitory effect on pathogens. Spray 150-200 times of rice vinegar solution on the leaf surface, spray once every 7 days, and spray 3 to 4 times to prevent powdery mildew, black spot, downy mildew and so on. Use 50 ml of vinegar (rice vinegar), soak the small cotton ball in vinegar, and gently rub it with the wet cotton ball on the stems and leaves of the affected flowers, and then kill the scale insects. The damaged leaves can be returned to green. Spraying 5% vinegar on the flower leaf surface can eliminate black spot, powdery mildew and leaf spot, and can also prevent yellowing of camellia and rhododendron.
7, washing powder solution
Take 2 grams of washing powder, add 500 grams of water to stir into a solution, add a drop of oil (the oil used after cooking without cooking), spray the insects on the plants. It can kill mites, scale insects, red spiders, green thorn moth, pink butterfly, whitefly and so on. Flowers with roots (such as peony, dahlia) or bulbs (such as lily, lycium) and fleshy roots are susceptible to nematodes, and can be poured into the roots of plants with a 1000-fold dilution of detergent solution. Use three drops of detergent and a drop of salad oil into a sauce bottle containing 500 ml of water, install the nozzle, shake well and foam to use. Sprayed on the tip of the blade or plant with the worm body during use, spraying for about two or three days, you can find that the number of pests is reduced, and even disappeared, so as to achieve the purpose of pest control.
8, soap liquid
Take soap and hot boiled water and dissolve it after 1:50. Because soap can block the respiratory organs of the pests to death, it is effective for aphids and scale insects.
9, tobacco liquid
Tobacco contains nicotine, which has a strong contact effect on aphids, red spiders, ants, etc. It also has fumigation and stomach toxicity. Take 20 grams of tobacco or tobacco, add 500 grams of water and soak for 24 hours, then filter, add 500% of 2% soapy water to the filtrate, spray on the surface of the insects; or spray the filtrate directly on the soil without soapy water. Around the pelvic floor, it can kill pests in the soil.
10, green onion
Take 50 grams of green onion and pour it into a mud, add 50 grams of water, soak for 12 hours, filter and spray with the filtrate, and spray it for 3 to 4 days a day. It can cure soft insects such as aphids and powdery mildew.
11, ginger liquid
Ginger is taken into a muddy shape, soaked in water for 20 times for 12 hours. After filtering, it can be used to control leaf spot disease, coal pollution disease, rot disease, black spot disease, etc. by spraying with filtrate. It can also control aphids, red spiders and leaf miners.
12, citrus peel
Take 50 grams of citrus peel and soak for 500 hours with 500 grams of water. After filtering, take the filtrate and spray the leaf surface to control the aphids, red spiders and leaf miners, and pour into the soil to control the nematodes. Another citrus seed 1 part plus 5 parts of water, soak for 4-5 days, and then put the flower seeds in this solution for 10 minutes, can control a variety of pests.
13, bitter melon leaf liquid
Put the bitter gourd leaf 100-200 grams, add water to smash, add the same amount of lime, stir evenly, water the roots of the plant seedlings, and control the tiger.
14, tomato leaf liquid
50 grams of fresh tomato leaves are smashed, soaked in 150 grams of water for 6 hours, filtered and sprayed with filtrate to control aphids, spider mites, etc., and also drive away flies.
15, chili juice
Take 50 grams of pepper and add 10 times of water to boil for 20 minutes, then filter it. Spray with the filtrate to control pests such as aphids, red spiders, skunks, etc., and pour into the soil to control the silkworms.
16, nettle leaf powder
After drying the nettle leaves and rods, they are ground into powder and applied to the soil to prevent cockroaches.
17, oleander liquid
50 grams of oleander leaves and chopped, add 100 grams of water to boil for 20 to 30 minutes, go to the slag to take clear liquid spray, control aphids, white meal, and pour into the soil to control nematodes. However, it should be noted that oleander is more toxic, and it is necessary to guard against human and animal ingestion.
18, baking soda solution
Take 5 grams of baking soda (also known as sodium bicarbonate), first dissolve it with a small amount of alcohol, then add about 1000 grams of water, prepare a 0.5% solution, spray the plant to prevent powdery mildew.
19: mosquito coil
After the mosquito coils were ignited, they were hung on the insect-bearing plants, and the plants and flower pots were covered with plastic bags. After 1 hour, the pests were eliminated.
20, health ball
The health ball is ground and placed in the potting soil to prevent underground pests.
21: Chives
Soak 1 kg of leeks and 10 kg of water for 24 hours, and spray the water of the leeks on the leaves of the flowers to prevent black spot and powdery mildew. For diseases that have been infected, the disease can be alleviated.
22, grass ash
Take 50 grams of plant ash, add 2500 grams of water to stir well, soak for 48 hours, then filter, add 3 grams of washing powder to the filtrate and stir well. This liquid can cure mites and leaf-eating pests such as aphids, red spiders, whitefly, scale insects, and can be prevented from being wormed by pouring into the soil. Spray once a day, spray for three consecutive days, and spray for three consecutive days after seven days to eliminate the second generation of pests.
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