![]() |
Texas
Agricultural Extension Service The Texas A&M University System |
![]() |
| Hub
of the Plains Pest Management Report A newsletter about integrated pest management for growers in Lubbock, County. |
||
|
|
||
|
(806)747-2625
(phone)
|
(806)781-4084
(mobile)
|
(806)762-4178
(FAX)
|
|
b-baugh@tamu.edu
(e-mail)
|
http://www.tpma.org
(web)
|
|
| Volume 6- No. 4 |
1418
Ave. G Lubbock, Texas 79401
|
June
27, 2001
|
|
|
||
CURRENT
CROP CONDITIONS |
WHAT
THE SCOUTS ARE FINDING
|
|
1
|
|
COTTON FLEAHOPPERS STILL INFESTING AREA FIELDS Fleahopper infestations are a common occurrence in area program fields. As mentioned earlier, these infestations are ranging from low to high. Most of the infestations are what I would call a chronic infestation where the populations continually stay below threshold at 8 to 10 per 100 terminals over a two week period. These infestations are made up of mostly nymphs with very few adults being found. I believe the heavy populations of crab spiders are responsible for keeping most of these populations below threshold. However, these chronic infestations are taking a toll on the area square set. We have fields in the fourth week of squaring with less than a 60% square set. To add fuel to the fire, we are finding a substantial number of early planted fields with respectable numbers of bollworm eggs per acre. Under these circumstances I am recommending 2-3 oz. of Orthene® 90S or 8.5 oz. of Vydate® 3.77 C-LV for control and to protect beneficial insects. In my opinion, producers who elect not to treat for fleahoppers in order to save beneficials to prevent a bollworm outbreak are making a big mistake. In many of these fields, the fleahoppers are blasting enough squares to starve out a significant bollworm population. NEED TO KEEP A CLOSE WATCH ON BEET ARMYWORMS Well, the time is upon us for the second generation egg lay of beet armyworms, and although we are not picking up any egg masses this week, the reports from up North do not sound good. Bottom line, an outbreak of beet armyworm at our current growth stage would be devastating. Producers need to be on the lookout for the egg masses that are laid on both sides of the leaves and are covered with a whitish velvety material. In addition, be on the lookout for plants that have most of the leaves skeletonized. Remember, the spray threshold is 20,000 small larvae per acre and at least 10% of randomly selected plants are infested.
|
Posted at this web site by: texagnet Internet Services. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
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 information given herein is for educational purposes only. References to commercial products or trade names is made with the understanding that no discrimination is intended and no endorsement by the Cooperative Extension Service is implied. ___________________________________________________________________________________________________________
|