Now is the time to spread pre-emergants (corn gluten meal) to prevent the germination of weed seeds which have been lying in wait.
What does it do?
Prevents dormant small weed and herb seeds from germinating. Can also help prevent grubs from reproducing.
When to use:
Apply before the soil reaches 55 degrees. The best time is usually mid-March to mid-April. If the yellow forsythias are blooming, it is too late.
Tips and benefits:
- As it breaks down it provides nitrogen to the foliage of the surrounding plants and grass.
- People and pet safe
- Natural bi-product, non-chemical
- For best results lightly water in the corn gluten meal after application.
- Apply corn-gluten meal with hand or walking spreader.
- Wait to plant grass seed for at least four weeks after application
Now is ALSO the time to spread Milky Spore (organic) or Grub-X (chemical) to prevent the transformation of grass root eating grubs into rose and flower eating Japanese Beetles.
-Milky Spore Powder is a One Time application using only one teaspoonful every 4 feet in a checker board pattern on your lawn, or use the Lawn and Garden Dispenser
• Apply anytime the ground is not frozen
• Ten year performance guarantee on the Japanese Beetle Grub (can last up to twenty years)
• Not harmful to man, animals or the environment, safe to use around water ways
• Kills the grub stage of the Japanese Beetle
• Natural bacteria eats the grub from the inside
• Does not harm beneficial insects
Omri listed for use in organic production
• Milky Spore Powder is applied every four feet using one teaspoon or the Lawn and Garden Dispenser
• Your lawn will look like a grid pattern or checker board. Apply just before it rains or water in gently for about fifteen minutes
The following information and image is from http://www.extension.umn.edu/garden/insects/find/japanese-beetles/ Figure 3. Life cycle of Japanese beetle: egg, grub, and adult stages. In June, the grub turns into a pupa. It emerges from the soil in late June and July as an adult, to mate and lay eggs. Females live for a few weeks feeding on trees, shrubs and roses in the morning, returning to the turf in the afternoon to lay more eggs. Eggs hatch in July and grubs are almost full grown by late August. Grubs dig deep in the soil for the winter months and then move upward in spring as the soil warms. Grubs do best in warm, slightly moist soil that has plenty of organic matter and tender grasses. However, they can survive in almost any soil.