![]() |
Texas
Agricultural Extension Service The Texas A&M University System Pest Management Report |
![]() |
|
|
||
|
News
about Integrated Pest Management for producers in Crosby-Floyd Counties.
201 W. Aspen, Suite 011 Crosbyton, TX 79332, Phone: Crosbyton 806-675-2426, Fax 806-675-2348, Mobile 269-2427 E-mail Address: s-davis@tamu.edu, Website: http//entowww.tamu.edu |
||
|
|
||
| Vol. 1, No. 6 |
June
22, 2001
|
|
|
|
||
|
General Conditions: Program cotton fields for the two-county area are fair to poor due to lack of moisture accompanied by hot, dry conditions. Square shed is common with very little insect pressure to effectively reduce the fruiting process. Boll
Weevil Numbers : For some good news, weevils trapped this last week
were fewer with even the "hot spots" showing a decrease. The
large cotton acreage will be attracting them , however, traps around
program fields and in historically high population areas are not catching
alarming numbers. Plains Cotton Growers grid traps have decreased in
southern Crosby County and maintained in northern Crosby and throughout
Floyd County with average trap catches of 1 to 4 weevils for the week.
Fields that are in the first two weeks of squaring still need to be
scouted on regular intervals to alleviate damage from this pest. Grasshoppers
have been a problem on both sides of the "Canyon" in Crosby
County with some fields being treated in the margins. Lubbers are extremely
voracious feeders and will consume a large amount of plant material
in a short time. Pasture borders that have new, succulent field crops
emerging are highly susceptible when conditions exist as they are. Robert
Carter, crop consultant, reports that these "hoppers" are
moving into field margins as much as 600 ft. and are feeding primarily
on lush, tender terminals of cotton. He also reports that producers
are banding insecticide over the top and getting excellent control. |
False
Chinch Bugs are appearing in field margins as well but have not
created a wide-spread problem. To the naked eye, the nymphs appear about
the size of aphids but, when disturbed, move very rapidly. Nymphs have
a rusty brown appearance with black antennae and wing pads in the older
instars and adults are darker with clear wings when viewed under magnification.
These pests are showing up throughout the High Plains but, to date,
have not been of consequence. Beet Armyworm Larvae are still being seen in young cotton, or at least where they were feeding on young leaves. Survival rates are very low to non-existent in program fields. BAW moth trap catches have decreased over the last week but the next peak egg-lay is a couple of weeks away. More on this as it develops. Cotton Fleahoppers, Lygus Bugs, Cotton Aphids and Cotton Bollworms have all been reported from neighboring counties in program fields but all have been sub- economic to this point in most fields. Beneficial
Insects , especially "Crab Spiders", are in relatively
high numbers. In some program fields they can be found in most plant
terminals. Minute Pirate Bugs, Big-Eyed Bugs and Lady Beetles are not
as numerous as desired, but the pest numbers are not high enough to
maintain a significant population. |
|
1
|
|
Steve
Davis |
Posted at this web site by: texagnet Internet Services. |
| The information herein is for educational purposes only. Reference to commercial products or trade names is made with the understanding that no discrimination is intended and no endorsement is implied by the Texas Agricultural Extension Service. Educational programs conducted by the Texas Agricultural Extension Service serve people of all ages regardless of socioeconomic level, race, color, sex, religion, handicap or national origin. |
|
The
Texas A&M University System, U.S. Department of Agriculture and the
County Commissioners Courts of Texas Cooperating
|
|
2
|