Web Site: http://entowww.tamu.edu
Vol. 30, No. 12

COTTON
We are still finding a few cotton pest in some area fields. Beet armyworms have been the most common, although a few bollworms are also being found. Most fields are now safe from these pest; but I have observed some damage on medium and large sized bolls in late maturing cotton.

HARVEST AID GUIDE

Enclosed is a new Cotton Harvest Aid Guide, provided by Dr. Randy Boman, our Extension Agronomist - Cotton. Please call if you have any questions about the guide.

SORGHUM

Midge continue to be found on late blooming sorghum and should be scouted daily during the bloom period. Corn earworm and fall armyworm infestations remain variable in area sorghum. In most cases populations remain below threshold. Lygus bug infestations have been on the increase.

Populations have ranged from 0 to 20 per head, but have averaged 4 to 5 per head. These can be a concern in late planted seed production fields, due to a possible reduction in seed germination.

CORN

Corn harvest is in full swing and should be completed soon, except for late planted fields. Southwestern corn borers have moved to the base of the corn stalk and some have started to girdle plants.

So far lodging is less than 5%, but will continue to increase as we move later into September. Fall armyworms have been found feeding at the base of the corn ear where the shank attaches the ear to the stalk. In a few cases the ears fall off easily when touched. So far less than 10% of the corn plants have been found infested with fall armyworms, and of the plants infested only a few have enough ear shank damage to cause the ear to fall to the ground. Spider mites have collapsed in all fields inspected. I have found only two European corn borer infested plants, while splitting stalks. This pest has been very light this year.

SUNFLOWERS

Emilio Nino, Extension Agent - IPM has reported finding significant numbers of sunflower moths in late blooming sunflowers in the Lamb County area.

Greg Cronholm, Extension Agent - IPM,
122 East 6th, P.O. Box 680
Plainview, TX. 79073-0680
806-291-5273
Ento. Dept. Website: http://entowww.tamu.edu
Dist. 2 Website: http://lubbock.tamu.edu
E-Mail: g-cronholm@tamu.edu

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