Issue no. 2 of the Home, Yard & Garden Newsletter is now available on the Web
IN THIS ISSUE:
=================================
The Home, Yard, and Garden Pest Newsletter will be issued
weekly from this issue through May and June. In July, we will switch to issues
every other week.
---------------------------------------------------------------
Cooler weather over the last two weeks has helped bring
the insect activity pattern closer to normal. Based on growing degree days with
a base temperature of 50 degrees F, southern Illinois is slightly over two
weeks ahead of last year, central Illinois is three weeks early, and northern
Illinois is slightly over four weeks early.
---------------------------------------------------------------
The most common pests that should be in susceptible
treatment stages are discussed. Be sure to scout to verify that the susceptible
stages of the insect are present before applying controls.
---------------------------------------------------------------
Emerald ash borer should be flying in both central and
southern Illinois and will continue to emerge and fly for several weeks.
Although insecticide sprays against the adults are effective, applications of
systemic insecticides between 50% leaf expansion in spring until approximately
six weeks before leaf fall are recommended.
---------------------------------------------------------------
There have been large early flights of black cutworm
moths throughout Illinois for several weeks. Golf course personnel should be on
the lookout for black cutworm larval infestations in bentgrass, ryegrass, and
fescue. Cold temperatures have little effect on the survival of eggs and
larvae.
---------------------------------------------------------------
In October of 2011, Boxwood Blight (Cylindrocladium
pseudonaviculatum) (syn. C. buxicola), was detected in North Carolina and
Connecticut. Later, there were more
detections of this disease in the United States.
---------------------------------------------------------------
Brown Rot can cause blossom blight, stem canker, and
dieback of peach, cherry and other stone fruit species. The visual symptoms of
brown rot have many similarities to symptoms caused by fire blight on apple,
pear and many other species in the rose family. The pathogens that cause brown
rot and fire blight are very different.
---------------------------------------------------------------
On November 1, 2011, the federal requirement for an NPDES
permit for certain pesticide applications went into effect.
0 comments:
Post a Comment