P.O. Box 318

Marty Jungman
Extension Agent-Pest Management
Office: 254/582-3551
Fax: 254/582-5512
Hillsboro, TX 76645
 June 21, 2001
Vol. VI No. 9
Hill-McLennan Counties
Web Site: entowww.tamu.edu
E-mail: m-jungman@tamu.edu

GENERAL SITUATION

Soil moisture conditions will range from dry to adequate. The majority of the grain sorghum will range from boot to just past bloom and in seed. Most of the corn has tasseled and will range from just prior to roasting ear to soft dough. Cotton growth stage will range from two true leaves to dime-sized bolls. Most of the cotton will vary from third-grown square to bloom.

CORN and GRAIN SORGHUM

Greenbug levels are very light.

Yellow sugarcane aphids are not being seen.

Sorghum midge continue to be in light numbers and will range from 0 to 6 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 moderate to high numbers.

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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. The Aquilla area is scheduled to begin silaging corn the later part of this week.

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Insecticide control may be limited due to constant migration or expensive due to frequent applications.

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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.

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COTTON

Cotton continues to make good progress. Moisture conditions have been ideal for growth and setting squares (Fleahoppers have caused some fields to not be set as well as expected.)

Thrips continue to cause problems to later planted cotton.

Cotton aphids will range from light to moderate. There are some fields with moderate amount of leaf cupping with honeydew on leaves. Beneficial levels are on the increase and I do not expect any long term problem with aphids, at least in most fields.

Fleahopper numbers will range from 8-100 per 100 terminals. The majority of fields will range from 20-75 per 100 terminals. Most 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.

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Lygus bug numbers are light and will range from 0-4 per 100 plants.

Bollworm egg counts are light and will range from 0-4 per 100 plants. Bollworm larvae counts will range from 0-3 per 100 plants. I have not seen any fields in the IPM Program where bollworms are causing economic damage. Bollworm/budworm trap counts indicate a higher percentage of bollworm moths at all locations. We continue to see tobacco budworm moths in trap catches at a significant percentage.

Overwintered boll weevil trap counts continue to be very light.


OVERWINTERING BOLL WEEVIL
PHEROMONE TRAP CATCHES

AREA/PRODUCER
5/30
6/5
6/12
6/19
CHATT:
Delmer Sullins
0
0
1
0
Barney Pustejovsky
0
0
0
1
Joe Sinkule
0
0
0
0
ITASCA/COVINGTON
Loren Weaver
0
0
0
0
James Ray Schronk
0
0
0
0
BYNUM:
Leroy Walters
0
0
0
0
BRANDON:
Lanny Neil
0
0
0
0
Larry Degner
0
0
0
0
Aaron Walters
0
1
0
0
MALONE:
Satch Degner
0
0
0
0
Charles Trompler
0
0
1
0
Ronnie Radke
0
3
0
0
Rayford Schulze
0
1
0
0
Kenneth Machac
1
0
0
0
WEST/COTTONWOOD:
John C. Polansky *
0
0
0
Richard Holy
0
0
0
0
PENELOPE:
Thomas Holy
0
0
0
0
AQUILLA:
Ronnie Gerik #1
0
0
0
0
Ronnie Gerik #2
0
0
0
0
Dennis Gerik
0
0
0
0
* trap down

 

Bollworm/Budworm Moth Trap Catches

BOLLWORM
BUDWORM
Producer/Area
6/12
6/19
6/12
6/19
Kenneth Machac
Bynum/Malone
11
84
56
42
Ronnie Gerik
Aquilla
7
1
0
0
Joe Sinkule
Chatt
313
202
33
135

(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. Larvae are not being seen in fields.

BEET ARMYWORM TRAP COUNT

 
2001
2000
 
5/16
40
156
5/22
46
65
5/29
33
9
6/5
7
22
6/12
8
7
6/19
18
4

(The cumulative average of two traps/week. Trap location is in the Chatt area.)

 


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