Doing battle with landscape pests can cause gardeners unbounded frustration. Remembering that they are doing what comes naturally can help, but tolerance and understanding can only go so far where some pests are concerned.
Japanese beetles are small pests that carry a big threat. They do not discriminate on what types of plants to feed on, in fact, they are classified as a pest to hundreds of different plants. Japanese beetles are ½ inch in length and metallic blue-green with tan wings, with small white hairs lining each side of the abdomen. Their larva, which also damage plants, are 3/4 inch long, white in color and ‘C’ shaped. The adult beetles can easily destroy and eat just about any plant.
Japanese Beetles arrived in 1912 on imported Japanese iris bulbs and have been spreading ever since. They emerge from the soil in early July to feed, mate and lay eggs. Adults can live up to 45-60 days constantly feeding through late summer and early fall. Eggs are layed in July and August. Grubs hatch, feed and then go sleep into the soil in the winter. They pupate in the spring, feed and emerge as adults in June and July. Japanese beetles feed in masses and severely destroy any plant they feed on. Skeletonized leaves, damaged flowers, and defoliated trees are an indication you could have a Japanese beetle infestation.
There are multiple treatment options available including natural sprays and traps as well as beetle killer spray and granular grub control. The experts at Pahl’s are always available to assist and we carry a great selection of Bonide products to help combat all types of landscape pests.