What to do if golden perennial grass has pest infestation
As a popular succulent plant, the golden leaves of golden perennial grass are highly susceptible to pest infestation in hot and humid summer conditions. This article systematically analyzes the common pest types of golden perennial grass and scientific control methods to help you create healthy plants.
A guide to identifying pest infestations on golden perennial grass
Characteristics of small black flying pest infestation
This type of black flying insect聚集 on the surface of leaves, forming dense black patches. The secretion of sticky fluid by the insects obstructs leaf respiration, causing the plant to show signs of dehydration and wilting within 3-5 days, and the whole plant may die in severe cases.
Manifestations of scale insect damage
The white waxy bodies of these insects cover the surface of stems and leaves, secreting honeydew that causes sooty mold. When the insect density exceeds 10 per square centimeter, the photosynthetic efficiency of the plant drops by more than 60%, accompanied by the risk of root rot.
Pest control system for golden perennial grass
Preventive disinfection treatment
What to do if golden perennial grass has pest infestation
Use the high-temperature steam method to treat potting soil: place the substrate in a heat-resistant bag and microwave on high for 3 minutes to kill 99% of insect eggs. Wipe tools with 75% alcohol and soak the flowerpots in potassium permanganate solution (1:1000) for 30 minutes.
Physical removal plan
Isolate the plant immediately upon detecting pest infestation, and clean each leaf with a soft brush dipped in soapy water (1:50). Rinse and place in a well-ventilated area to dry, and use yellow boards to trap adult insects, which can reduce the insect population by 50%.
Chemical control strategy
Alternately use imidacloprid (2000 times solution) and thiamethoxam (1500 times solution), focusing on spraying the back of leaves and the junctions of stems. For root irrigation, it is recommended to use phoxim granules, mixing 2g of the medicine with 1kg of soil, with an effective period of 45 days.
Establishing a three-in-one protection system that includes environmental control, physical removal, and chemical control, combined with monthly prevention using matrine biological preparations, can reduce the incidence of pest infestation in golden perennial grass by 80%. Regularly checking the condition of the plant and maintaining a well-ventilated and bright environment are key to maintaining healthy growth of succulents.