Farm & Ranch
[AgriLife Today] West Texas cotton producers should be on the lookout for bollworms
By: Steve Byrns
Writer: Steve Byrns, 325-653-4576, [email protected]
Contact: Dr. Suhas Vyavhare, 806-746-6101, [email protected]
LUBBOCK – A Texas A&M AgriLife Extension Service entomologist is advising West Texas cotton farmers to remain vigilant in their hunt for bollworms.
“I haven’t come across any significant bollworm activity in the region yet,” said Dr. Suhas Vyavhare of Lubbock. “But blooming cotton coupled with new growth following recent rains in our area makes for an especially enticing combination for bollworm moths seeking egg-laying sites. So it’s important for growers not to let their guard down.”
Vyavhare’s warning was prompted by reports from South Texas of the pest breaking Bt shields there and in other parts of the country. He said treatable levels of bollworms, also called headworms when they affect sorghum, have been spotted in some South Plains sorghum fields.
That’s not to say growers should become lax in scouting for cotton pests, but boll damage and the presence of live bollworms should be taken into account before making decisions on whether to apply insecticide, he said. “I wouldn’t rush insecticide applications on Bt cotton just because bollworm eggs are present or worms less than a quarter inch are found, because they have to feed on the plant for the genetic technology to work,” he said. “Similarly, I wouldn’t pull the trigger and spray non-Bt cotton based on egg lay, as natural controls often help keep bollworm numbers in check. It’s always best to give the Bt trait technology and the beneficial insect predators a chance to work their magic first.”
“The threshold to apply insecticide is when 6 percent of the bolls, post bloom, are damaged with live worms present,” he said. “Some of the old data indicates pyrethroid insecticides may still work against cotton bollworms, though we have no recent susceptibility data available from the High Plains region.
“The diamides, trade names Prevathon and Besiege, are the most effective. Besiege contains both a diamide and a pyrethroid, so it would be the better choice if stink bugs are present too. If stink bugs aren’t an issue, Prevathon is a better option, as it’s always good to avoid unnecessary pyrethroid applications, because they also kill beneficial insects that otherwise could keep secondary pests such as aphids and spider mites at bay.”
Overall though, Vyavhare said the cotton crop looks good, though there is a wide range of cotton in different growth stages out in the fields.
“Early planted cotton fields are in bloom while some of the late or replanted cotton is a little behind,” he said. “Overall though, insect pest pressure remains light across our region.”
For more information, contact Vyavhare at 806-746-6101, [email protected].
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Farm & Ranch
Managing Show Cattle Through The Winter
By Heather Welper
Husband and wife duo, Heather and Calvin Welper, are the Co-Owners and Operators or Two C Livestock, located in Valley View, Texas.
The pair’s operation has a show cattle focus where they raise and sell purebred heifers of all breeds and club calf Hereford steers.
When it comes to show cattle, the Welpers know a thing or two including how to prepare for the cold winter months and the Texas major show season run.
To read more, pick up a copy of the November edition of North Texas Farm & Ranch magazine, available digitally and in print. To subscribe by mail, call 940-872-5922.
Farm & Ranch
Double M Ranch & Rescue
By Hannah Claxton, Editor
As the sun rises each day, so do the dozens of mouths that Meghan McGovern is responsible for getting fed. Rather than the sounds of a rooster crowing, McGovern hears the bellows and bleats of a variety of exotic deer, the chortle of kangaroos, the grunts of water buffaloes, and the chirps of a lemur.
Nestled against the banks of the Red River, the Double M Ranch and Rescue, with its high game fences and deer sprinkling the landscape,s its in stark contrast to the surrounding ranches.
“Having deer is kind of like eating potato chips- you can never actually have just one,” said McGovern with a laugh.
McGovern has several herds to take care of- fallow deer, axis deer, water buffalo, goats, and bison. In smaller numbers, there’s also a few kangaroos, a lemur, a potbelly pig, a pair of zebras, a watusi, and a few horses.
To read more, pick up a copy of the November edition of North Texas Farm & Ranch magazine, available digitally and in print. To subscribe by mail, call 940-872-5922.
Farm & Ranch
Acorn Toxicity
By Barry Whitworth, DVM, MPH
With the prolonged drought, most pastures in Oklahoma end up in poor condition. With the lack of available forage, animals may go in search of alternative foods.
If oak trees are in the pastures, acorns may be a favorite meal for some livestock in the fall. This may result in oak poisoning.
Oak leaves, twigs, buds, and acorns may be toxic to some animals when consumed.
To read more, pick up a copy of the November edition of North Texas Farm & Ranch magazine, available digitally and in print. To subscribe by mail, call 940-872-5922.
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