What to Do About Chrysanthemum Aphids
When carefully cultivated chrysanthemums are attacked by aphids, the delicate flower buds and leaves are crawling with tiny green insects, which not only affect the healthy growth of the plant but also destroy its ornamental value. This article systematically compiles 5 scientific control methods, combining organic control with chemical elimination, to help gardening enthusiasts completely solve the problem of chrysanthemum aphids.
Professional Chemical Control Methods
1. Precision Pesticide Elimination
In the early stages of aphid infestation, use dichlorvos or dimethoate emulsion diluted at a ratio of 1:800, focusing on spraying the back of the leaves and tender buds. It is recommended to operate during the early morning when there is no wind, and spray continuously for 3 times at 3-day intervals, ensuring the pesticide solution evenly covers the surface of the insects.
Natural Organic Control Methods
1. Garlic Insect Repellent Preparation
Crush 200 grams of fresh garlic cloves and soak them in 500 ml of water for 24 hours. After filtering, dilute with water at a ratio of 1:10, pour into a pressure sprayer, and spray thoroughly. The garlic components can effectively repel aphids, spider mites, and other soft-bodied pests.
2. Chili Insecticide Preparation
Chop 50 grams of dried chili peppers and boil them in 1 liter of water, simmering for 15 minutes. After cooling, add 5 ml of dishwashing liquid to enhance adhesion, filter, and spray on the plants. The capsaicin in chili peppers can quickly paralyze the nervous system of aphids.
3. Sichuan Pepper Protective Water Formula
What to Do About Chrysanthemum Aphids
Boil 100 grams of Sichuan pepper seeds with 1.5 liters of water for 30 minutes, filter the residue, and add 2 tablespoons of white vinegar. This solution can be sprayed to repel insects or poured at the roots for prevention, forming a persistent protective barrier with its special aroma.
4. Tobacco Leaf Biological Insecticide
Collect 20 cigarette butts or 30 grams of tobacco leaves and soak them in 1 liter of boiling water for 48 hours. After rubbing and filtering, add soap water to enhance effectiveness. Nicotine components can effectively kill aphid larvae and have significant control over leaf-rolling insects.
By combining chemical control with organic methods, it is recommended to alternate between different methods to prevent insects from developing resistance. Maintain good ventilation and light for the plants, regularly check the back of leaves for eggs, and use yellow boards for physical trapping to build a comprehensive protection system. This will keep chrysanthemums free from pest threats and allow them to bloom healthy flowers.