Issue no. 13 of the Home, Yard & Garden Newsletter
IN THIS ISSUE:
=================================
Seedcorn beetles, Stenolophus lecontei, have been
reported in large numbers in turf in Michigan, Ohio, Kentucky, and California.
The adult beetles are slightly over one-quarter inch long, oval, and
yellowish-brown to brown with two large, black oval spots on the back. In the
past, only adult beetles were found burrowing into golf greens in September and
October.
---------------------------------------------------------------
Pearleaf blister mites, Phytoptus pyri, has been reported
on ornamental pears. This is an eriophyid mite that attacks not only apple and
pear fruit and ornamental trees, but also other rose family trees including
serviceberry, cotoneaster, hawthorn, and mountain ash.
---------------------------------------------------------------
FMC has just released three short videos concerning label
changes associated with Talstar, their bifenthrin product. Similar changes
appear to be in store for other pyrethroid insecticides.
---------------------------------------------------------------
Cicada killer continues to be very numerous in many parts
of Illinois this summer. These wasps are about 2 inches long, black with yellow
markings, and have reddish, transparent wings. The females dig 1/2-inch-diameter
burrows that extend about seven to twenty inches into the soil. This results in
mounds of loose soil around the burrow openings.
---------------------------------------------------------------
White grubs should be hatching or have hatched throughout
the state. Our normal first date for determining grub numbers through scouting
is around August 6. However, adults emerged ten to fourteen days early this
year, so all of the eggs should have hatched. Fewer people appear to be
irrigating their lawns this year, so the grubs will be concentrated in the few
highly irrigated turf areas.
---------------------------------------------------------------
When the ornamentals in your backyard are slowly dying
off or developing poorly, this poor growth and decline may be symptoms of a
Rhizoctonia root rot. Whether it is an
ornamental, vegetable, or a field crop; a wide range of plants are subjected to
Rhizoctonia root rot disease. The disease is caused by a soilborne fungus of
the Rhizoctonia spp.
---------------------------------------------------------------
Powdery mildews are one of the most easily recognized
diseases in the landscape.
Unfortunately, they are equally as common and can be a problem on
annuals, perennials, shrubs, and even trees. Powdery mildews flourish when the
days are warm to hot, the nights are cool, and humidity is high. They are often
more severe on crowded plants growing in the shade where air circulation is
poor.
=================================
0 comments:
Post a Comment