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P.O. Box 318 |
Hillsboro,
TX 76645
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June
14, 2001 Vol. VI No. 8 Hill-McLennan Counties Web Site: entowww.tamu.edu E-mail: m-jungman@tamu.edu |
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GENERAL SITUATION Soil moisture conditions will range from adequate to dry. Most of the corn and grain sorghum in the area is in need of a rainfall. The majority of the corn is tasseled or beyond. A number of area grain sorghum fields are in full bloom. Cotton growth stage will range from 3 true leaves to bloom. The majority of the cotton will vary from pinhead to 1 week past 1/3 grown square. CORN and GRAIN SORGHUM Greenbug levels are
very light. Sorghum midge are very light to non-existent. We have not seen any sorghum midge in most fields. Midge numbers will range from 0-2 per 100 heads. The economic threshold is an average of 1 per head. Grasshoppers continue to move into area corn, grain sorghum and cotton fields next to pastures in high numbers. Movement into fields is actually occurring earlier, as far as crop stage, than what we have seen in prior years. |
Insecticide control may be limited due to constant migration or expensive due to frequent applications. *********************************************** Producers should pay close attention to their use of foliar insecticides and number of days to harvest on corn that will or may be silaged. *********************************************** COTTON The majority of the cotton continues to grow off well. Most fields will have a percent square set ranging from 60-85%. Thrips continue to cause problems to younger or later planted cotton. Thrip numbers and damage will range from moderate to heavy. Cotton aphids will range from light to moderate with an increase from last week. There are some fields with moderate amount of leaf cupping. An increase in aphids is common after the use of early season insecticide applications. |
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Hopefully, beneficial insects will increase rapidly. At this point, control measures are not necessary. Fleahopper numbers will range from 0-54 per 100 terminals. Most fields will range from 4-16 per 100 terminals. The majority of the cotton is set well enough to be past fleahoppers. Producers, with later planted cotton that has just started to square, should monitor fleahopper numbers closely. Lygus bug numbers are light and will range from 0-4 per 100 plants.
Overwintered
boll weevil trap counts continue to be light. OVERWINTERING
BOLL WEEVIL
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Bollworm/Budworm
Moth Trap Catches
(Number of moths per trap) * Bollworm and budworm moth trap counts are not indicative of the number of moths out in the field. The trap counts are used as a monitoring tool to determine the percent bollworm and percent budworm in the area. Beet armyworms trap counts are very light. In some fields we are seeing beet armyworm larvae in light numbers. BEET ARMYWORM TRAP COUNT
(The cumulative average of two traps/week. Trap location is in the Chatt area.)
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*********************************************************************************************************************************************************** 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. ___________________________________________________________________________________________________________
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