-
This is whitefly, control methods (1) Cultivating insect-free seedlings When raising seedlings, the seedbed and the production greenhouse should be separated, and the seedlings should be thoroughly disinfected before planting, and the seedlings should be cleaned up before planting when there are insects, so that the cotton seedlings used for planting are insect-free. (2) Use aphid wasps to control whiteflies, when each cotton plant has whitefly heads, put 3-5 bees per plant, put 1 time in 10 days, and release bees 3-4 times in a row, which can basically control its pest. (3) Pay attention to the arrangement of stubble and reasonable layout In greenhouses and greenhouses, cucumbers, tomatoes, eggplants, peppers, beans, etc. should not be mixed, and if conditions permit, they can be interplanted with celery, leeks, garlic, garlic, etc., to prevent the spread of whiteflies.
4) Early medication began to spray 20 parametryl wettable powder 1500 times liquid or 25 acaricidal emulsifiable concentrate 1000 times liquid, 2 5 Uranus emulsifiable concentrate 3000-4000 times liquid, 2 5 kung fu pyrethrin emulsifiable concentrate 2000-3000 times liquid, 20 dissolin emulsifiable concentrate 2000 times liquid, 10 imidacloprid wettable powder 1500 times liquid, once every 10 days or so, continuous control 2-3 times. (5) The whitefly in the shed can be used to apply the tobacco agent with a knapsack or motorized smoke generator, and the dosage should be strictly controlled by this method to avoid pesticide damage. (6) Cassava cuttings from the tropics, African islands and India must be treated with insect control to prevent the spread of the insect.
-
It may be mealybugs or aphids, and can be sprayed with soapy water and insecticides to eliminate the pests.
1. Cut the soap head left over from washing clothes into small pieces, add water and stir into Qiweiyuan alkaline soap, and spray a small amount of spray into the flower pot, which can effectively kill small insects.
2. Pour flour and whole milk powder into a container at 8:1, mix with water, filter with gauze, and spray the filtrate on the flower branches and leaves, which can kill most of the mealybugs, ticks and aphids.
3. Stir well with half a teaspoon of detergent and 4 liters of water, and spray the back of the leaves every 5 days until the pest is completely eliminated.
4. Soak cigarette butts in water and spray them on small insects, which can also kill pests.
5. With 100 insects, the places where flowers are sold are generally sold, mixed with water and sprayed on the places where there are insects.
-
These small white flying insects that grow on the back of jasmine leaves are whiteflies and tend to occur in arid conditions. Control agent: 70% imidacloprid wettable powder 7500 10000 times or 20% acetamiprid soluble powder 6500 10000 times.
Solution: 1. Soak the tobacco of a cigarette in water for 2 hours, dilute it into a watering can amount, and sprinkle the flower and leaf chain and basin. Or sprinkle with soapy water.
2. The solution to the thorough draft is to change the pot and soil. Shake the soil clean, change it to new soil and water it, and put it in a cool place for 1-2 days to see the sun. Remember not to hurt the roots when changing the soil, and it is more convenient to pour the soil thoroughly and loosen it, and then turn the pot upside down.
-
The tiny black bugs that appear on the flowers of Lihua can be one of the common pests such as aphids or thrips. These pests will suck the sap of the lichen flowers, causing problems such as leaf atrophy, leaf yellowing, and flower deformation.
Here are some possible ways to control and eradicate these pests:
1.Hand removal: Use your fingers to gently wipe or spray water over the surface of flowers and leaves to flush the bugs away. It is a simple and non-chemical method for minor pest infestations.
2.Biological control: The introduction of beneficial insects, such as parasitic predators such as the aphid cocoon wasp (Aphidius colemani), can help control aphid populations. These beneficial insects live in the aphids, helping to reduce their numbers.
3.Natural pesticides: Spraying aphids and mosquitoes with organic pesticides, such as nironone or plant extracts, can effectively control their populations. Please take care to use pesticides correctly according to the product instructions and read and follow the safety instructions before use.
4.Community management: Maintaining the overall health and ecological balance of plants is an important part of pest control. Measures such as proper pruning, clearing fallen leaves, and controlling plant density can help reduce pest habitat.
Remember to make sure you have properly identified the pest before taking any control measures. In the meantime, choose the method that suits your needs and environment, and follow the instructions for use. If you are unsure or serious about the pest control, you can consult a local horticultural expert or agricultural agency for help.
Freshly purchased jasmine flowers need to be kept in an environment with a temperature of about 30 degrees Celsius, during which they can be sprayed with water mist to cool down. Don't rush to water, you need to wait for the soil to dry before watering again. Generally, it is enough to water it again after a week. >>>More
There are more than 500 species of animal-eating plants in the world, among which the insect trap of pitcher plant is the most elaborate and complex. >>>More
If there are white bugs inside your teeth, this should be your teeth are broken, so some caries will develop. >>>More
Jasmine blooms from early summer and can bloom in three stages if properly managed. >>>More
Tsubaki elephant. Also called bed bugs.
Because bed bugs like to live on cotton wool and hatch their eggs, in the spring, especially in April and May, the air humidity is caused by excessive rain. >>>More