Why does full sun increase infestation risk for azalea lace bugs?

Why does full sun increase infestation risk for azalea lace bugs?

• A. Azaleas prefer shade; stressed plants attract lace bugs.
• B. Full sun kills lace bugs.
• C. Lace bugs thrive best in dry, sunny conditions but not shade.
• D. Shade worsens lace bug infestations.

Answer: (A)

Lace bugs are more of a problem when the host plant is stressed. Azaleas actually prefer some shade, and when they’re kept in full sun they can become heat- or drought-stressed. That stress weakens the plant’s normal defenses and makes the leaves more vulnerable to feeding by lace bugs. Stressed leaves are also more attractive to insects and can support higher insect numbers, so infestations are more likely and more noticeable. In contrast, under shade the plants stay healthier and more vigorous, which helps resist lace bug establishment. So the idea is that full sun stresses the azalea, increasing susceptibility to lace bugs, while shade helps keep the plant resilient.

Lace bugs are more of a problem when the host plant is stressed. Azaleas actually prefer some shade, and when they’re kept in full sun they can become heat- or drought-stressed. That stress weakens the plant’s normal defenses and makes the leaves more vulnerable to feeding by lace bugs. Stressed leaves are also more attractive to insects and can support higher insect numbers, so infestations are more likely and more noticeable. In contrast, under shade the plants stay healthier and more vigorous, which helps resist lace bug establishment. So the idea is that full sun stresses the azalea, increasing susceptibility to lace bugs, while shade helps keep the plant resilient.