TechNotes Tips - 04.19.01

Redbuds in full bloom often marks the time for gypsy moth eggs to start hatching. Last year in places where the weather was cool and wet the “biological control” of gypsy moth, the fungus Entomophagamaimaga was effective in keeping the gypsy moth caterpillar in check. This year the egg masses from which the caterpillar hatch are well hidden and maybe attached to rocks, trees, mailboxes or houses. Once the caterpillar hatches it looks for a tree to feed on. This insect pest is a serious problem on my trees in the eastern United States. If you would like more information on this insect see:
http://www.ag.ohio-state.edu/~ohioline/hyg-fact/2000/2173.html

Last week’s rapid warm up caused the turfgrass to green-up and grow rapidly. Scalping is a common occurrence on turf this time of year due to the rapid growth and infrequent mowing. Scalping will often turn the turf a yellowish-brown. Make sure when mowing that the mower blade is sharp or “ripping” of the leaf blades will occur causing an unsightly looking turf.