Honeysuckle (scientific name: Lonicera japonica thunb.).), also known as honeysuckle, honeysuckle, etc., is a common Chinese herbal medicine and ornamental plant. Honeysuckle is widely distributed in China and has high medicinal value and ornamental value. However, during the growth of honeysuckle, it is often attacked by pests and diseases, affecting its growth and production. This article will give you a detailed introduction to the identification and control measures of honeysuckle pests and diseases.
1. Disease identification and prevention.
Powdery mildew: Powdery mildew is one of the main diseases of honeysuckle, which is characterized by the appearance of a white powdery substance on leaves, shoots and flower buds. Prevention and control methods:
1) Strengthen ventilation and light transmission to avoid excessive humidity;
2) At the beginning of the disease, spray 800 times of 50% carbendazim wettable powder in time, spray once every 7-10 days, and spray 2-3 times continuously.
Black Spot: Black spot mainly affects the leaves and shoots of honeysuckle, and is manifested as black spots on the leaves. Prevention and control methods:
1) Strengthen ventilation and light transmission to avoid excessive humidity;
2) At the beginning of the disease, spray 75% chlorothalonil wettable powder 800 times in time, spray once every 7-10 days, and spray 2-3 times continuously.
Rust: Rust mainly affects the leaves and shoots of honeysuckle, and is manifested as yellow rust spots on the leaves. Prevention and control methods:
1) Strengthen ventilation and light transmission to avoid excessive humidity;
2) At the beginning of the disease, spray 800 times of 50% sulfur suspension in time, spray once every 7-10 days, and spray 2-3 times continuously.
2. Identification and control of insect pests.
Aphids: Aphids mainly damage the shoots, leaves, and buds of honeysuckle, manifesting as a viscous liquid on the leaves. Prevention and control methods:
1) Strengthen ventilation and light transmission to avoid excessive humidity;
2) At the beginning of the disease, spray 1000 times of 40% dimethoate emulsifiable concentrate in time, spray once every 7-10 days, and spray 2-3 times continuously.
Spider mites: Spider mites mainly damage the leaves and shoots of honeysuckle, manifesting as red spider webs on the leaves. Prevention and control methods:
1) Strengthen ventilation and light transmission to avoid excessive humidity;
2) Spray 20% dicofol EC 1000 times in time at the early stage of the disease, spray once every 7-10 days, and spray 2-3 times continuously.
Leafhopper: The leafhopper mainly harms the shoots and leaves of honeysuckle, which manifests as a white powdery substance on the leaves. Prevention and control methods:
1) Strengthen ventilation and light transmission to avoid excessive humidity;
2) At the beginning of the disease, spray 1000 times of 50% dichlorvos emulsifiable concentrate in time, spray once every 7-10 days, and spray 2-3 times continuously.