What are common damage symptoms caused by sucking pests?

What are common damage symptoms caused by sucking pests?

• A. Stippling, leaf yellowing, wilting, honeydew, sooty mold
• B. Bark fissures and cankers
• C. Fruit drop and seed loss
• D. Leaf curl and crinkling

Answer: (A)

Feeding by sap-sucking insects disrupts plant tissues and water transport, producing distinctive symptoms: stippling from punctured cells, leaf yellowing as chlorophyll function is impaired, and wilting when water movement is reduced. Many of these pests also excrete honeydew, which fosters sooty mold on leaves and stems, further reducing photosynthesis. In contrast, bark fissures and cankers come from wood-boring pests or fungal pathogens, fruit drop and seed loss come from broader stress or reproductive issues, and leaf curl or crinkling is more typical of mites, viruses, or environmental stress. So the combination of stippling, yellowing, wilting, honeydew, and sooty mold is the best fit for sucking-pest damage.

Feeding by sap-sucking insects disrupts plant tissues and water transport, producing distinctive symptoms: stippling from punctured cells, leaf yellowing as chlorophyll function is impaired, and wilting when water movement is reduced. Many of these pests also excrete honeydew, which fosters sooty mold on leaves and stems, further reducing photosynthesis. In contrast, bark fissures and cankers come from wood-boring pests or fungal pathogens, fruit drop and seed loss come from broader stress or reproductive issues, and leaf curl or crinkling is more typical of mites, viruses, or environmental stress. So the combination of stippling, yellowing, wilting, honeydew, and sooty mold is the best fit for sucking-pest damage.