Whiteflies
Tiny white insects gather on the undersides of leaves and fly up in a cloud when the plant is disturbed. Infested plants may develop yellowing, curling, or wilting leaves. Sticky honeydew is often present on leaves and stems, which can lead to the growth of black sooty mold and reduced plant vigor.
Tiny white insects gather on the undersides of leaves and fly up in a cloud when the plant is disturbed. Infested plants may develop yellowing, curling, or wilting leaves. Sticky honeydew is often present on leaves and stems, which can lead to the growth of black sooty mold and reduced plant vigor.
Whiteflies thrive in warm weather, overcrowded plantings, and areas with poor air circulation. Excessive nitrogen fertilizer encourages soft new growth that attracts whiteflies. They spread quickly in greenhouses and protected growing areas.
Remove heavily infested leaves and spray the undersides of leaves with a strong stream of water to dislodge insects. Apply insecticidal soap or neem oil according to the product label, ensuring thorough coverage. Use yellow sticky traps to reduce adult populations and encourage beneficial insects such as ladybugs and lacewings for natural control.
Inspect plants regularly, maintain good air circulation, avoid excessive nitrogen fertilizer, and remove weeds that may harbor whiteflies. Encourage beneficial insects and isolate newly purchased plants before placing them near healthy plants.