If it’s dry, keep the lawn watered. Cockchafer. If parts of your lawn turn yellow, remove a small section of turf and if it’s full of grubs, then you’ve got a problem. As a result of progressive restrictions concerning application of chemicals into forest environment, alternate solutions have been sought, e.g. The nematode penetrates the grub and releases bacteria (Photorhabdus spp.) An adult beetle is … The biological control which uses a parasitic nematode called Heterorhabditis megidis is not effective against the Cockchafer grub, but will kill the grubs of the common Garden Chafer which is much smaller, but similar in shape with legs on the thorax. If you have any questions, please leave a comment below. Application Rate: Concentrate = 10ml per m2 - (1 litre treats 100m2) or 2 litre Hose-on bottle treats 100m2 click for html version Other common names: Scarab Summary: Yellowheaded cockchafer (Sericesthis harti) is the main species of white curl grub affecting cereal crops across south-eastern Australia including New South Wales, Victoria and … They have soft bodies, have six legs and are grub like. After a couple of weeks when your lawn is well and truly dead, remove the turf. Often times, patches of your lawn can become yellow and the grass can loosen. If you’ve had a bad infestation, apply it in the spring too, early April to the end of May while doing your other spring lawn jobs. Project experts should prepare advice to Ukrainian authorities on how to adapt the current legislation to incorporate the new strategy to fight cockchafer damage (May beetle). Flea Control, Re applications may be necessary. Chafer Grub invasions are pretty easy to spot. This is when the Grubs are closest to the surface. In this study three insecticides, carbofuran, diazinon, and benfuracarb, were tested against the pest and the mortality rates estimated. White curl grubs live beneath the soil surface and feed on the healthy roots of grass. that kill the chafer grubs … 1892). Keep turning the soil over each day for a couple of weeks to expose as many Chafer Grubs as possible. CrossRef; Google Scholar However, an infestation of Chafer Grubs can cause a lot of damage to a lawn. These are based on soil t illing and eradicat ion of . After a few weeks, your lawn should be back to its former glory. There are many reason why people love their gardens. This is the result of Chafer larvae causing damage by eating the roots of the grass. Control of larvae after seedling emergence is more effective than prior to sowing. In the pre-industrialized era, the control of elevated cockchafer grub numbers negatively affecting various crops was a difficult and often unsuccessful undertak-ing. Applying insecticides to control mature grubs is rarely successful. The key is to break the lifecycle targeting the hatching eggs and early instar larvae. The grubs feed on a wide range of decomposing plant material and also the live the roots and stems of the plants including the grass. In the past, cockchafer grubs were manually removed from plowed soils. TARR, S. A. J. During cold weather, they move 2-8 inches deep into the soil to overwinter. They have light brown/orange coloured heads and three pairs of legs. If you apply the grub killer and then scarify you’ll disrupt the soil while the Nematodes are trying to work. Overseed your grass in the spring and fall to help thicken your lawn and help prevent beetles from laying larve eggs. If your lawn has been ruined as a result of Chafer Grubs, take a picture and send it in. The young larvae prefer the dead and decaying organic matter, while the older larvae feed on roots of grasses. They are also referred to as white curl grub, cockchafer or the larvae of black, scarab, lawn or Christmas beetle. Decadentdaylilies.com, Aphids: Identifying & Preventing Aphids in Your Garden, Understanding The Process of Photosynthesis. Keller S, Schweizer C, Keller E, Brenner H, 1997. Granted, it sounds like something out of a horror film but the fact is, it works. Insecticides to use for lawn grub or cockchafer control. Reduce the use of outdoor lights and garden lights as the lights will attract the adult beetles which will lay the eggs in your garden soil. Control. The paper presents a review of information on control measures used to prevent damages due to cockchafer Melolontha spp. Just follow the lawn care practices above and you should be able to keep them to a minimum. 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