They have a couple different habits that make them stand out from their grub cousins. Affected areas will feel soft and spongy to walk on, and turf in these spots can be lifted up with ease. June bugs: a beetle even an entomologist struggles to love They’re whacking against the windows, they’re buzzing around your deck. Adult beetles emerge in the spring or early summer, in May or June, and lay eggs in the soil. The end of summer the second year is when the larva does the greatest damage. Share it! Choose resistant varieties of plants. One other beautifying option available to you is to remove the areas of grass that are typically attacked by grubs and take advantage of SAWS’ WaterSaver Coupons. Beetles fly at night and are attracted to lights. The common June beetle is one among many Phyllophaga spp. All June bug species are considered scarab beetles, all start out as a larval form known as "grubs," and all appear as adults in the garden in late spring to early summer. Left untreated, grubs can weaken and destroy your lawn. Common names for this genus and many other related genera in the subfamily Melolonthinae are May beetles, June bugs, and June beetles. Some provinces and municipalities have placed more restrictions on the use of certain approved lawn and garden pesticides. Larvae are white with a C-shaped body, brown head, and three pairs of legs. galleriae strain SDS-502; Apply with your favourite Scotts® spreader; 1.40 kg (3.08 lb) treats up to 125 m 2 (1,345 ft 2 ) Product not for sale in New Brunswick ; $34.99. To check for green June beetle grubs, dig up flat sections of sod several inches deep. Immature May/June beetles (i.e., larvae or “white grubs”) have distinctly C-shaped, cream-colored bodies with a reddish-brown head and three pairs of legs. A distinguishing feature among these three species is the pattern of spines o… The green June beetle grub and winged adults are slightly larger in size than the May/June Beetle although the lawn grubs look similar. 0000187381 00000 n It tends to be more common where soils are lighter and sandier. Their strong mouth-parts are capable of cutting off taproots of smaller seedlings. You can hand pick adult beetles or vacuum them using a small vacuum with a disposable bag. 103 Entomology Hall Lincoln, NE 68583-0816. Note, though, that not all beetles are bad: … They are quite small upon hatching, but at maturity are from 2 to 4 cm (3/4 to 1 1/2 inches), depending on the species. Often, skunks and other small mammals will pull back the turf to feed on grubs in the spring or fall. Can the June bug insect be dealt with entirely naturally? Remove excessive thatch, and aerate compacted soil areas to ensure proper drainage. You will definitely recognize them if you see them – grubs are the white, c- shaped, soft-bodied larvae found underneath those dead patches in your lawn. Grubs are one of the most difficult lawn pests to deal with. As grub feeding continues, areas of turf (sod) begin to wilt and turn brown. Grubs, the term given to larvae of scarab beetles, are frequently found feeding on the roots of turf and pasture grasses. June bugs are commonly seen in many areas in the United States, as well as other regions of the world which facilitate their living conditions. Some of these are specific to a single insect, but others will control several pests in an area. They range in size from 12 to 35 mm (0.47 to 1.38 in) and are blackish or reddish-brown in colour, without prominent markings, and often rather hairy ventrally. For best results, collect the beetles early in the morning when they are still sluggish. Depending on the kind of lined June beetle, grubs could be damaging roots of garden plants. If reseeding or establishing a lawn, use grasses containing an endophytic fungus like fescues and ryegrasses. Beetles are light to dark brown and measure about 2 cm in length and 1cm in width. Red adult beetles emerge the third year in May or June. While the ten-lined June beetles do not bite or have poison they are a nuisance to anyone who has a garden because they eat the roots of plants. Extremely dry summers destroy many eggs and newly hatched grubs. Add Comment. White grubs do the most damage at these times: The best thing you can do is to make sure your lawn is healthy before any problems happen. The beetles are named for the white lines down their backs. While "June bug" is most popular in some regions, in others, "June beetle" or "May beetle" may be used. It was first identified in the Lower Mainland in New West Minster in 2001 and has since spread to many municipalities across Metro Vancouver. Turfgrass - May/June Beetle Grubs | Department of Entomology Larvae: The length of the larvae varies from 20 to 45 mm. Adults overwinter in the soil and emerge to lay eggs in late May to early June. After eggs are laid, white grubs are present and begin feeding on grass roots. A scarab beetle grub from Australia. This type of fungus keeps grubs away. Grubs are white or yellowish and have fleshy, wrinkled, C-shaped bodies with tan or brown heads and six spiny legs. May/June Beetle grubs have a distinct V- or Y-shaped anal slit and two parallel rows of hairs on the raster, the key identifying features distinguishing May/June Beetle grubs from other White Grubs. June Beetle Info at a Glance. White grubs are the larvae of certain beetles, such as June beetles and chafers. Green June beetle grubs, especially third instars, burrow to the surface at night to feed and may at times graze on turf. The European Chafer beetle is a grub that feeds on the roots of plants. Green June beetle grubs are most abundant in sandy or sandy loam soil rich in organic matter. The grubs of these insects can also cause damage to lawn and turf grass. June Beetles are sometimes called "May Beetles" in certain parts of the country. (Photo of Green June Bug courtesy of … For all three grub species, apply a treatment just after the larvae have hatched, in mid- to late-August or in mid-September, when the turf is moist. Mature larvae are 1–2 inches (25–55 mm) in length. Green June beetles, masked chafers, European chafers, Japanese beetles, oriental beetles and Asiatic garden beetles have annual life cycles, meaning they complete one generation per year. Adults mate and lay eggs in mid-summer (June to August). Remove old plants and weeds, then rake/de-thatch your lawn or cultivate the soil thoroughly to expose any grubs to their predators and the weather. The southern masked chafer and the green June beetle are other species within the white grub group. Kill Japanese beetles and other June bugs with a safe, do-it-yourself insecticide. They are quite small when they hatch, but when fully grown are from 2 to 4 cm (.75 to 1.5 inches), depending on the species. They are the white-colored grubs. They may travel considerable distances in search of plant roots on which to feed. You will not receive a reply. Adults of these beetles are light to dark brown and measure about 20 mm in length and 11 mm in width. Many insect larvae are lumped into a group and called grub worms. White Grubs - There is no reliable way to predict whether any given year will be a bad one for white grubs - the immature, turf-feeding stages of Japanese beetles, masked chafers, and certain other beetles (May beetles, green June beetle,, Oriental beetle, European chafer, Asiatic garden beetle). White Grub Life Cycle. Two smaller exotic species, the European chafer and the Japanese beetle, have been accidentally introduced into Canada and are found mainly in the Niagara peninsula. When mature, grubs are about 3 cm in length. These grubs live in the soil during development and survive by feeding on the roots of grass. Green June beetle grubs crawl on their backs with their legs in the air. June beetle adults are shiny reddish brown, and up to 2.5 cm (1 inch) long. While adult June bugs are a big nuisance, it is their offspring — known as white grubs — that are the real pests. Put beetles in soapy water to kill them. June beetle larvae, called white grubs, are about 25 mm (1 inch) long and live in the soil. However, their disruptive burrowing and mound-building activities can disfigure turf. Habitat: Under boards and other debris in shortgrass prairie habitat with sunflower, yucca, prickly-pear cacti, grasses, and scattered elm trees. It is sometimes confused with the related southwestern species figeater beetle Cotinis mutabilis, which is less destructive. Take a look at the life cycle and characteristics of this mini-beast, and also read some interesting facts about it. ft.), dead patches of turf will result. June beetles are also called May beetles because of the times of the year where they are seen the most. Cotinis nitida, commonly known as the green June beetle, June bug or June beetle, is a beetle of the family Scarabaeidae. If you can, dig or till your land one year before you seed it or lay sod. restrictions on the use of certain approved lawn and garden pesticides. Some parts of this site work best with JavaScript enabled. You can also shake beetles from plants and collect them in a cloth, placed directly below the plant. Beetle grubs should tackled during the early fall. The ideal conditions are green healthy, irrigated lawns. It’s June bug season on P.E.I. These symptoms m June beetle larvae, called white grubs, are about 25 mm (1 inch) long and live in the soil. Beetles have been around 230 million years. Eight to 10 grubs per square foot can damage a lawn. There are commercial grub-control products for professional pest control operators, and some domestic products for homeowners. Larva feed on grass roots and are lawn destroying insects. These are the most common in New England. Like it? If you are having trouble with identific… The most common white grubs infesting turf in Canada are those of the native June beetle or June bug. The back of the thorax is covered with short, stiff hairs and has three distinct ridges per segment. If you want to attract wildlife to your yard, … June bugs are beetles, and beetles rock June bugs are members of the vast and diverse group of insects we call beetles. Introduction. If you notice grubs during the warm, dry periods of the growing season, water and fertilize your lawn to strengthen it and make up for the root feeding damage. They are also C-shaped, like the European chafer larvae. Adult Japanese beetles (June bugs) typically lay eggs in lawns in June. Grubs seldom consume enough turf roots to cause significant damage. Certain parasitic wasps and flies also help keep June bug or Japanese beetle populations in check. In areas where their numbers exceed five to 10 per one-tenth of a square metre (1 sq. Early instar grubs frequently can be found tunneling in the top 4 inches of soil. Rock June bugs common June beetles are light to dark brown and measure about 20 mm long, and compacted. And municipalities have placed more restrictions on the turfgrass roots the hardest lawn pests to deal with or! 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