Japanese beetles feed on nearly 300 species of plants. Adults feed on flowers, grapes, and shrubs. Japanese beetle larvae feed on grass roots.
The Japanese beetle’s origins in North America date back to 1916. The beetle hitched a ride on nursery stock brought from Japan to the World’s Fair. Consequently, the beetle quickly became a serious pest in the United States. Many of the beetle’s natural predators from Japan were nonexistent in North America.
The metallic green and coppery wing covers are the most recognizable trait of the Japanese beetle. These beetles are most often observed during periods of warm, sunny weather. Because these insects actively feed on many fruit and vegetable plants, they are an agricultural nuisance with economic repercussions for many farmers.
For the purpose of pest control, both biological and chemical treatments are available. However, it is important to note that one of the common historical biological controls, Bacterial Milky Spore disease, is not well suited for Connecticut’s climate. This soil-dwelling bacterium is not sustained through Connecticut’s winters and has had inconsistent results as a treatment.
Another biological control measure that can be used on the larvae of Japanese beetles is the use of beneficial nematodes. The nematodes burrow into the grubs and release a bacterium that kills the grubs.
Additional maintenance and chemical measures can also be used to combat the Japanese beetle during both the larval and adult stages. Contact Eric today to discuss the best options for keeping your landscape healthy and pest-free all year long.