https://youtu.be/Zqq7qGfnMXY
One of the hardest lawn pests to deal with, white grubs are the larvae of certain beetles. These grubs have fleshy, wrinkled, c-shaped physiques with tan or brown heads and six prickly legs. They will grow as long as 4 cm, depending on the species. The most common white grubs overrunning lawns in Delta are the June beetle or June bug and the European chafer and the Japanese beetle. Grubs especially enjoy the fibrous roots of lawn grass causing the turf to wilt and turn brown. Damage is usually at its worst in the spring and autumn when it rains the most. Raccoons, skunks and crows then destroy lawns in search of these grubs in the spring or fall. The best defense against the damage done by grubs and their predators is to maintain a healthy lawn. Remove excessive thatch, and aerate lawns yearly, maintain a mowing height to 6 to 8 cm, leave lawn clippings after mowing, water when required and use fertilizer with high potassium and enough nitrogen. And finally, the use of beneficial nematodes, these tiny parasites enters the larvae and kills them. The window to use is late July-early to late August when the grubs are young.
Gogreenpestcontrol.ca Ladner Tsawwassen Delta B.C. Randy Bilesky
https://www.linkedin.com/pulse/white-grubs-randy-bilesky?published=t
http://www.delta-optimist.com/opinion/blogs/blog-white-grubs-1.18205425