Cold snap reduced some pests, others unaffected - KPLC 7 News, Lake Charles, Louisiana

Cold snap reduced some pests, others unaffected

(Source: Jeff Davis/LSU AgCenter) (Source: Jeff Davis/LSU AgCenter)

Good news after record-breaking cold temperatures in Louisiana this month - fewer bugs.

According to the LSU AgCenter, many crop pests did not survive the cold snap. That's great for farmers who are preparing for the upcoming growing season.

The bad news is mosquitoes, ticks and other pesky pests were not affected by the weather.

Stink Bugs, loopers, armyworms

Enemy No. 1 for soybeans is the redbanded stink bug, according to entomologist Jeff Davis. He says after the cold weather, it will be difficult to spot any of these insects north of Interstate 10.

“From our observations, anytime you have temperatures below 23 degrees for 10 hours, you will see reductions of approximately 90 percent of redbanded stink bugs,” Davis said. “We were colder than that and for much longer than that.”

Davis said corn earworm numbers will also be reduced.

Unfortunately the threat still looms from soybean loopers and fall armyworms, which come to the Bayou State later in the year. Also, the cold weather was harmful to the beneficial bugs.

Weevils

“I expect to see the populations of the weevil crash,” said entomologist Rodrigo Diaz.

Weevils play a crucial role in managing giant salvinia, an aggressive weed in freshwater habitats.

“Salvinia can be protected from the cold in tree crevices or under plant debris. If all the weevils in an area died, it will be very easy for the plants to regenerate and take over an area,” Diaz said.

Mosquitoes and ticks

AgCenter medical entomologist Kristin Healy said the freezing temperatures won't do much for mosquito control.

“Some of the mosquitoes we have here are also found in New Jersey, so they can tolerate cold weather,” Healy said.

The same goes for ticks.

“Many of the ticks found here are also found as far north as Canada, so they are well adapted to the cold,” she said.

Copyright 2018 KPLC. All rights reserved

  • More Local NewsNewsMore>>

  • 14-year-old shot Saturday night was student at Moss Bluff Middle School

    14-year-old shot Saturday night was student at Moss Bluff Middle School

    Sunday, May 27 2018 7:42 PM EDT2018-05-27 23:42:48 GMT

    A teenage boy has died following an accidental shooting in Moss Bluff Saturday night. At approximately 10:08 p.m., the Calcasieu Parish Sheriff's Office responded to a call that a subject was shot on Koonce Road, according to Stitch Guillory, chief deputy of CPSO. Warren Wimberly, 14, was shot while sleeping over at a friends house. Guillory says another 14-year-old boy didn't realize the gun he had was loaded when he pointed it at Wimberly and the gun was discharged. "Th...

    More >>

    A teenage boy has died following an accidental shooting in Moss Bluff Saturday night. At approximately 10:08 p.m., the Calcasieu Parish Sheriff's Office responded to a call that a subject was shot on Koonce Road, according to Stitch Guillory, chief deputy of CPSO. Warren Wimberly, 14, was shot while sleeping over at a friends house. Guillory says another 14-year-old boy didn't realize the gun he had was loaded when he pointed it at Wimberly and the gun was discharged. "Th...

    More >>
  • Subtropical Storm Alberto forms in the NW Caribbean

    Subtropical Storm Alberto getting set for landfall

    Subtropical Storm Alberto getting set for landfall

    Sunday, May 27 2018 6:12 PM EDT2018-05-27 22:12:58 GMT
    Alberto set to make landfall in FloridaAlberto set to make landfall in Florida

    The National Hurricane Center is monitoring sub-tropical storm Alberto now moving into the northwest Gulf of Mexico. There are maximum sustained winds of 50 mph, with the center of circulation located about 165 miles west of Tampa, Florida. The storm is moving NNW at 12 mph.

    More >>

    The National Hurricane Center is monitoring sub-tropical storm Alberto now moving into the northwest Gulf of Mexico. There are maximum sustained winds of 50 mph, with the center of circulation located about 165 miles west of Tampa, Florida. The storm is moving NNW at 12 mph.

    More >>
  • FIRST ALERT FORECAST: Nice Memorial Day weather; Alberto getting set to make landfall

    FIRST ALERT FORECAST: Nice Memorial Day weather; Alberto getting set to make landfall

    Sunday, May 27 2018 5:09 PM EDT2018-05-27 21:09:56 GMT
    Alberto keeps the rain away from SWLAAlberto keeps the rain away from SWLA
    Alberto keeps the rain away from SWLAAlberto keeps the rain away from SWLA

    Around sunset, most of the rain will come to an end. After midnight, most of the clouds will clear away, and the rain chances go back down to zero. The temperatures will still be warm and muggy tonight. Lows will be in the lower to mid 70s. On Memorial Day, I cannot rule out a couple stray showers. Therefore, I do have a 20% chance for some rain. These showers will be from the outflow from Alberto. If you plan on spending some time outside, it should be a nice day to do so.

    More >>

    Around sunset, most of the rain will come to an end. After midnight, most of the clouds will clear away, and the rain chances go back down to zero. The temperatures will still be warm and muggy tonight. Lows will be in the lower to mid 70s. On Memorial Day, I cannot rule out a couple stray showers. Therefore, I do have a 20% chance for some rain. These showers will be from the outflow from Alberto. If you plan on spending some time outside, it should be a nice day to do so.

    More >>
Powered by Frankly