{"title":"Control chafer grubs","description":"\u003cp data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cem data-mce-fragment=\"1\"\u003eWhat is a grub?\u003cbr\u003e\u003c\/em\u003e\u003c\/strong\u003eA chafer grub is the larva of a scarab beetle. The most common are the June beetle, May beetle, and garden foliage beetle. The grubs have a similar outward appearance, but can differ in size.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eWhat damage do grubs cause?\u003cbr\u003e\u003c\/em\u003e\u003c\/strong\u003eThe chafer grubs cause considerable damage to plants as they feast on the roots. Between July and September, damage can be so great that large parts of a lawn can turn yellow and die off.\u003cbr data-mce-fragment=\"1\"\u003e \u003cbr data-mce-fragment=\"1\"\u003e In addition, there is a risk of secondary damage from birds, moles, and other animals who feast on the \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003echafer \u003c\/span\u003egrubs. They can dig up the entire lawn and cause major damage in their search for the \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003echafer \u003c\/span\u003egrubs.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cem data-mce-fragment=\"1\"\u003eThe lifecycle of grubs\u003cbr\u003e\u003c\/em\u003e\u003c\/strong\u003eThere are different types of beetle, each with its own lifecycle, which can vary from one to four years. Most beetles lay their eggs between May and July, and it then takes three to six weeks for the young grubs to hatch. The \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003echafer \u003c\/span\u003egrubs will grow increasingly large in the first to third years until they pupate into an adult beetle. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cem data-mce-fragment=\"1\"\u003eManaging grubs with nematodes\u003cbr\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003eChafer g\u003c\/span\u003erubs can be tackled with nematodes most effectively while they are still young (smaller than 2 cm), in which case you will usually find between 80% and 95% dead within a few weeks of treatment. If the \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003echafer \u003c\/span\u003egrubs are larger, the efficacy of nematode treatment can fall to below 50%. It’s therefore important to apply the nematodes at the right point in time, when the grubs are still small. It’s also important to give them plenty of water, as this will help the nematodes to penetrate the soil and reach the grubs. In addition, nematodes will die if conditions are too dry.\u003cbr data-mce-fragment=\"1\"\u003e \u003cbr data-mce-fragment=\"1\"\u003e As many \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003echafer \u003c\/span\u003egrubs live for several years, they must be treated every year so that the younger \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003echafer \u003c\/span\u003egrubs are dealt with before they become larger. If you have a stubborn infestation, you should apply nematodes two to three times a year, with a few months in between treatments.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cem data-mce-fragment=\"1\"\u003eWhat is the best time to treat \u003cmeta charset=\"utf-8\"\u003e \u003cspan data-mce-fragment=\"1\"\u003echafer \u003c\/span\u003egrubs?\u003cbr\u003e\u003c\/em\u003e\u003c\/strong\u003eThe best time to treat \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003echafer \u003c\/span\u003egrubs is two to three months after the beetles emerge from the ground, which is between June and September. If you don't spot the beetles, we recommend applying the nematodes in August and September. The younger\/smaller the \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003echafer \u003c\/span\u003egrubs, the more effective the treatment.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cem data-mce-fragment=\"1\"\u003eWhich nematodes should I opt for?\u003cbr\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003ca href=\"https:\/\/nematodesonline.co.uk\/products\/heterorhabditis-bacteriophora\"\u003eHeterorhabditis bacteriophora\u003c\/a\u003e is by far the most effective nematode for \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003echafer \u003c\/span\u003egrubs, so we recommend using it. These nematodes cannot tolerate cold and work best at soil temperatures in excess of 18°C. If the soil temperature is likely to fall below 12°C, they will be less effective. This is typically the case at the end of September or beginning of October, so don't delay when it comes to using the nematodes!\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003ca href=\"https:\/\/nematodesonline.co.uk\/collections\/instructions-for-use\"\u003eClick here for the instructions for use\u003c\/a\u003e","products":[],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0518\/3524\/0610\/collections\/Engerlingen.jpg?v=1610370431","url":"https:\/\/nematodesonline-co-uk.myshopify.com\/collections\/control-grubs-with-nematodes.oembed","provider":"NematodesOnline.co.uk","version":"1.0","type":"link"}