P.O. Box 318

Marty Jungman
Extension Agent-Pest Management
Office: 254/582-3551
Fax: 254/582-5512

Hillsboro, TX 76645

June 6, 2002

Vol. VIII No. 6
Hill-McLennan Counties
Web Site: entowww.tamu.edu
E-mail: m-jungman@tamu.edu


GENERAL SITUATION

The moisture situation will range from adequate to wet. Corn has tasseled out and ears have begun grain fill. Most of the grain sorghum has headed out. Milo will range from boot to past orange bloom stage in seed. The majority of the milo is in bloom. Most of the cotton will range from match-head square to 1/3 grown square. Cotton in the Aquilla area will begin to bloom the latter part of this week.

CORN and GRAIN SORGHUM

Grasshoppers continue to move into some area fields next to pastures, waterways, roadsides, etc. In some locations grasshoppers have moved in further than just the edge of the field. Producers should monitor corn and grain sorghum for grasshoppers.

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Producers that are planning or considering silaging corn should be very careful on what foliar insecticides they use for grasshoppers, etc. and the number of days to harvest. Lorsban® should not be applied 14 days prior to harvest for silage.
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Greenbugs will range from light to heavy in numbers in grain sorghum. Greenbugs in most fields are light with a decline in numbers over the past few weeks. Some fields with higher greenbug levels have just recently been reduced to low numbers due to beneficial insects. There are still a few fields that I have seen with higher greenbug numbers but beneficials are building and hopefully they will be drastically reduced in the next seven days.

Yellow sugarcane aphids are light in grain sorghum.
Sorghum midge are below levels of detection.

Spider mites in corn are being seen in a few area fields along the edge.

COTTON

Producers have been applying insecticide applications for fleahoppers and/or overwintered weevils the past couple of weeks. The majority of the cotton appears to be putting on an adequate number of squares.

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However, there are some fields where percent square set will range from 35-50% and fleahopper numbers will need to remain at low levels for a period of time. In general, percent square set will range from 35-75%. The cotton, due to warm nights, recent rainfall and early-season insecticide applications, has started to grow away from thrips damage.

Thrips numbers range from light to heavy. Most of the cotton is past thrips. There are still some fields where thrips remain a problem, mostly later planted cotton.

Cotton aphids are light but on the increase. We will probably see some fields with moderate aphid numbers next week due to recent insecticide applications and reduction in beneficial insects.

Grasshoppers have been controlled the past couple of weeks due to insecticide applications for fleahoppers and overwintered weevils. With insecticide applications ending in the next few days, grasshoppers will need to be monitored closely.

Fleahopper numbers will range from 0-22 per 100 terminals. Most fields will range from 0-16 per 100 terminals.

Overwintered boll weevil applications will end this week. OW weevil trap numbers are light.

Bollworm eggs and larvae are being seen in light numbers. Counts will range from 0-2% for bollworm eggs and larvae.

Spider mites are in light numbers in a few area fields.

Beet armyworm larvae are not being seen in area fields. Beet armyworm moth trap counts are light.

BEET ARMYWORM TRAP COUNT

 
2002
2001
5/21
113
46
5/28
40
33
6/4
23*
7

* Trap was down at Chatt location counts include just Vaughan trap. (The cumulative average of two traps/week. Trap locations are in the Chatt and Vaughan area)

Bollworm/Budworm Moth Trap Catches

BOLLWORM
BUDWORM
Producer/Area
6/4
6/4
Kenneth Machac
2
0
Bynum/Malone
Ronnie Gerik
51
0
Aquill
Delmer Sullins
20
0
Vaughn
     

(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.

OVERWINTERING BOLL WEEVIL
PHEROMONE TRAP CATCHES

AREA/PRODUCER
5/13
5/21
5/28 6/4
CHATT:
Edwin Hejl
0
0
0 0
Barney Pustejovsky
0
0
0 0
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
1 0
Rayford Schulze
0
0
0 1
BRANDON:
Ronnie Brown
0
0
0 0
Larry Degner
0
0
0 0
Aaron Walters
1
0
0 0
MALONE:
Charles Trompler
0
0
0 1
Ronnie Radke
0
0
0 0
Kenneth Machac
0
0
0 5
WEST/COTTONWOOD:
John C. Polansky
0
0
1 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



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