The Japanese beetle is a major pest of lawns and ornamental plants in Maryland. Adult beetles feed on more than 275 species of plants but especially like plants in the rose family. Grubs (larvae) feed on the roots of turfgrasses such as Kentucky bluegrass, fine fescues, ryegrasses, or bentgrasses. More
Japanese beetles can periodically be a significant pest in Maryland vineyards. They create large holes in the younger leaves of vines and cause severe lacing and even fruit damage in heavy infestations. The population build up is typically periodic and cyclic and may require control tactics in years of large infestations. More
Milky Spore Grub Control by St. Gabriel Organics is for Japanese Beetle control. Milky Spore is a bacteria that goes after the Japanese Beetle in it’s larval stage to eliminate them before they begin. It’s long lasting, best applied using a drop spreader and can be applied in spring, summer and fall. More
Tachinid flies are another predator of the Japanese beetle, and the University of Maryland suggests incorporating plants that attract them could help keep Japanese beetles under control. Tachnid flies may help with other pests as well. More
Bowie Community TV aired the garden club meeting and the Bowie City Council agreed to issue a proclamation declaring April, "Blitz the Beetle Month. The members were encouraged to persuade their neighbors to put down milky spore and to distribute a Univ. of MD pamphlet on Japanese beetle control. More
Japanese beetles (Popillia japonica) were not much of a problem in the United States until about 1919, when this ravenous native of Japan began a serious invasion, probably after hitchhiking to North American on imported ornamental plants.Today, they are a serious nuisance to gardeners and farmers across North America. The adult Japanese beetles that eat so many plants are about 3/8 ... More
Four Ways to Control Japanese Beetles Play Defense. A multi-part attack is best. Start by spraying the affected plants with Japanese Beetle Killer (pyrethrin) or neem at the first sign of attack.. Pyrethrin-based insecticide is a safe and effective way to control these pests on vegetables, grapes, raspberries, flowers, roses, trees and shrubs. In addition to controlling Japanese beetles, it ... More
Japanese Beetles in Talbot Co., Maryland (7/14/2013). Photo by Jim Brighton. A Japanese Beetle in Frederick Co., Maryland (8/9/2015). Photo by Mark Etheridge. A Japanese Beetle falls prey to a Wheel Bug in Howard Co., Maryland (7/24/2013). Photo by Richard Orr. Japanese Beetle in Allegany Co., Maryland (7/6/2015). ... More
The best way to control adult beetles is to make a preemptive strike, in the spring, well in advance of the adults emerging. Stage 3 Pupa: April – June. After this spring feeding period during the third summer of its life cycle, the grub pupates and turns into an adult Japanese beetle. More
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