crop pests Archives - Page 5 of 9 - Manitoba Co-operator

Flea beetles, cutworm numbers cause for concern

Manitoba Insect & Disease Update for June 6, 2018

By Manitoba Agriculture June 7, 2018

Diseases: No disease incidents reported this week. Insects: Flea beetles and cutworms continue to be the main insect concerns. Flea beetles are a concern in many canola fields and foliar insecticide applications are occurring in many areas. There has also been some reseeding of canola because of flea beetle feeding. Now that cutworms are getting larger and their feeding more prominent, some economic populations have been

Crop Report, Crops, Weather

Rapid crop growth seen, insect pressures on the rise

Manitoba Crop Report and Crop Weather report for June 4

By Manitoba Agriculture June 4, 2018

Seeding progress estimated at 99 per cent complete across Manitoba. Widespread rainfall throughout Manitoba, although amounts variable within each region. The recent rains and warm temperatures have resulted in rapid crop growth. Herbicide applications continue as field conditions allow and crop and weeds reach the appropriate stage. Flea beetle activity reported throughout the province, with

Crops

Seven beneficial insects on your farm

By Melanie Epp June 1, 2018

When making crop production management decisions, consider beneficial insect populations. These harmless bugs can provide adequate control if their populations are high enough. Some beneficial insects are hard to identify, but with some basic training producers should be able to spot them in the field. The following beneficial insects are found in most crops in

Dry weather has been bad news for canola emergence, but good news for flea beetles.

Crops, Oilseeds

Thin canola stands mean less margin for error for flea beetles

The Prairie Pest Monitoring Network warns that farmers may want to spray once flea beetles start eating a quarter or more of cotyledon leaf space

By Alexis Stockford May 28, 2018

The flea beetles are out, and Manitoba Agriculture is reminding farmers to keep economic thresholds in mind when scouting their canola. Manitoba Agriculture oilseeds specialist Dane Froese says beetle management might need some adjusting, depending on crop emergence. At the same time, dry conditions have farmers casting a careful eye on stand numbers. Froese had

Crops, News

Potato beetle resistance brewing

Potato producers are getting ready for their yearly fight with Colorado potato beetle, but in some places the products don’t work the way they used to

By Alexis Stockford May 1, 2018

The battle against Colorado potato beetle is becoming more difficult every season. It’s not a new problem. As early as 2014, producer groups were already warning that Colorado potato beetles were becoming increasingly resistant to neonicotinoids. Four years later, the problem has not gone away and, in some patches of the province, has arguably got

Crops

Six tips for managing wheat stem sawfly

By Melanie Epp March 9, 2018

As with most pests, wheat stem sawfly populations rise and fall, depending on weather and the presence of natural predators. Economic losses arise when wheat stem sawfly larvae feed inside the stem. While some of those losses are due to decreased seed weight, much of it occurs when the stems are cut and the plant

A lygus bug prepares to wreak havoc on a canola plant.

Crops, Local news

Manitoba crop insects seen in 2017

Manitoba Agriculture entomologist offers his yearly summary of bugs

By Manitoba Co-operator Staff December 12, 2017

From aphids to wheat midge, a wide variety of insects made their presence known in Manitoba crops in 2017. John Gavloski, entomologist with Manitoba Agriculture, has compiled a summary entitled ‘Summary of Insects on Crops in Manitoba in 2017‘ of the insects observed in fields across the province. Much of the crop insects identified in

New research may eventually see plants created that can shake off insect damage on their own.

Did you know?, News

Some plants rise to challenge of cutting

Research findings could increase productivity and lower pesticide use eventually

By Manitoba Co-operator Staff October 23, 2017

How would you like a canola plant that just got tougher as flea beetles tried to eat it? Eventually that may become reality if new research from the University of Illinois pans out over time. Researchers there have been studying a group of plants known as “overcompensators,” which react to being clipped by increasing their

Oat plants in central Manitoba display chlorosis discolouration, one of the first signs of barley yellow dwarf virus.

Cereals, Crops, Local news

Aphid-borne virus found in Manitoba oat fields

The virus, and its associated chlorosis and premature maturation, has been noted in several oat fields

By Alexis Stockford August 10, 2017

Oat fields in central Manitoba are fighting off barley yellow dwarf virus. “We see it from year to year,” Manitoba Agriculture field crop pathologist Holly Derksen said. “I think this is probably the most severe that I’ve seen it in fields, but that being said, it’s historically been present in Manitoba and in varying levels.”

Crops, Local news

Beneficials on the rise against soybean aphids, root rot, fusarium in fields

Manitoba Insect & Disease Update for August 2

By Manitoba Agriculture August 3, 2017

Diamondback moth continues to be a concern in some areas, although it is the pupa stage that is now dominant in some fields. Soybean aphids surpassed economic threshold in some fields. In some soybean fields natural enemy populations seem to be building in response to the soybean aphids. Bertha armyworms are being monitored, and high levels of larvae have

Daily Network News

U.S. livestock: Chicago cattle futures mixed ahead of Thanksgiving holiday

Pulse Weekly: Looking for trade deal to benefit Canadian growers

U.S. grains: CBOT soybeans firm as traders hope for more Chinese buying

Tag Archives crop pests