User Login    
 + Register
PDQ Cleaning
News : Insects Create Problem For Alfalfa Fields
Posted by Randy on 2013/7/26 4:56:39 (294 reads) News by the same author

Two insects are creating problems on alfalfa fields ready to cut for hay. Stealth scouting may be needed to see them, says a University of Missouri Extension entomologist. “These insects can be shy,” says Wayne Bailey. “The main message is go out and scout your fields.”

Click to see original Image in a new window


The pests are not new, but can arrive in overwhelming numbers.

Potato leafhoppers cause leaves to yellow and fall off, reducing hay yields. The other, the striped blister beetle, can kill horses if the insects are crushed and baled during haymaking.

With both, a noisy approach makes the insects drop to the ground and hide.

The first telltale sign of potato leafhopper may be V-shaped yellowing at the tip of each leaf. Hoppers suck juice from the leaves. The yellowing precedes leaves dying and falling off.

First-year plantings of alfalfa are most at risk, Bailey says. Seedlings in new stands are most vulnerable. A stand that survives the second season can withstand more damage.

The leafhoppers are small, green triangular insects. They do hop.

Economic threshold for applying insecticide is only one hopper per sweep of a 15-inch insect net. Some alfalfa varieties have hairy leaves that repel the hoppers. Threshold on those varieties is three insects per sweep.

A lot of fields are above threshold, Bailey says. The hoppers migrate into Missouri from the south, mostly coming up the western side of the state, then moving north and east.

“Already we have heavy infestations in central Missouri,” he adds.

The other beetles cause blisters on human skin if they are squashed. The body fluids contain alkaloids that are part of their self-defense.

Printer Friendly Page Send this Story to a Friend Create a PDF from the article


Other articles
2014/12/20 21:31:01 - Rice's Buzzer-Beater Earns Illinois Braggin' Rights Over Mizzou
2014/12/20 21:30:00 - Sierra Michaelis Has "Career Night", Mizzou Wins At Wake Forest
2014/12/20 21:27:53 - Haney Refiles For Chillicothe's Mayoral Position
2014/12/20 21:24:25 - Trenton Fire Damages Rapid Removal Trash Truck
2014/12/20 21:18:16 - Friday Accident Injures Browning Woman
2014/12/20 21:15:27 - Traffic Accident Reported Near Mount Moriah
2014/12/20 7:00:00 - NCMC Women Swept On Florida Road Trip
2014/12/20 6:55:42 - Sporting KC To Open 2015 Season Against Nemesis New York
2014/12/20 6:47:35 - Mizzou Starting Receiver To Miss Citrus Bowl
2014/12/20 6:40:58 - Trenton Gets Low Seeds For Ultra-Competitive Lawson Invitational Tournament
2014/12/20 6:34:29 - NCMC Holiday Hoops Begins With Wellington-Napoleon Sweep
2014/12/20 6:27:53 - Winston Boys Go Overtime To Win HDC Tournament Title
2014/12/19 17:20:11 - KC Royals Sign Starting Pitcher Edinson Volquez
2014/12/19 17:20:00 - Medlen In, Giavotella Out In Kansas City
2014/12/19 17:16:45 - California JUCO Player Verbals To Mizzou
2014/12/19 17:09:57 - Chillicothe Man Involved In I-435 Multi-Vehicle Accident
2014/12/19 17:04:42 - Thursday Accident Near Newtown Injures Area Women
2014/12/19 17:00:52 - Moore Files For Chillicothe Councilman-At-Large
2014/12/19 16:56:56 - Trial for Trenton Man Accused Of Murder Begins In January
2014/12/19 16:50:42 - Princeton Medical Clinic Adds X-Rays
2014/12/19 16:46:25 - Unionville Man Wins Patrol Trooper Award
2014/12/19 16:41:05 - Friday Morning Wreck Injures Cameron Man
2014/12/19 16:37:52 - Bethany Native Resigns Maryville Superintendent Position
2014/12/18 15:10:26 - 550 Million Year Old Fossils Provide New Clues about Fossil Formation
2014/12/18 15:10:00 - Daniel, Maclin, Coffman Highlight Mizzou's 2014 Hall Of Fame Class
2014/12/18 15:03:45 - Gallatin Man Organizing Regional Horticulture Conference
2014/12/18 14:58:51 - Upgraded Ketcham Center Set To Host 10th Annual Holiday Hoops
2014/12/18 14:48:10 - Royals Add To Pitching Staff, Signing Ex-Atlanta Brave Kris Medlen
2014/12/18 14:31:14 - Buchanan County Inmate Found Dead
2014/12/18 14:26:33 - Thursday Morning Accident Injures Jamesport Man



Bookmark this article at these sites

                   

Listen to KTTN-FM