JAPANESE ADULT BEETLES. Japanese adult beetles will be emerging shortly and feeding on susceptible plant material. Extremely sensitive plant material includes American mountain ash, evening primrose, Japanese maple, hollyhock, crabapple and American linden. The feeding of Japanese beetles generally does not overly stress the plants (unless severe defoliation occurs). However, defoliation caused by this insect reduces the aesthetic appearance of the plant material and the landscape. Skeletonizing of the leaves is the most common symptom. Regarding home lawns, adult Japanese beetles do not cause damage. The damaging stage occurs when the adults lay eggs, which hatch into grubs that feed on the turfgrass roots.
WATERING SUGGESTIONS. In many parts of the United States, moisture stress is present on many home lawns. In areas where supplemental irrigation is needed and water conservation is critical, here are a few suggestions:
Water deeply and infrequently. Warm season grasses have a deep root system allowing them to absorb deeper. Deep, infrequent watering also allows for a greater hardening off of the turfgrass plant. In some instances where hand watering is being implemented this may be difficult.
Bluish-colored turf is a sign of wilting. Water when the turf needs moisture the most, which is at the first sign of wilt.
SOIL TEMPERATURES.
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