Crop Protection

Pathologist hits back against fire blight

Fire blight and apple scab are the two biggest disease problems for Michigan’s commercial apple orchards. Scab hits annually, with damage to fruit the main concern. Fire blight is more sporadic – but when it... more »

Yellow spots on Michigan grape leaves not downy mildew

In late May, small, yellow spots on grape leaves were noticed by growers and vineyard scouts in multiple vineyards in southwest Michigan. Usually a single spot per leaf was seen on a range of grape... more »

How to prevent, manage SWD infestation

Our recent mild winter raised concerns about the potential for early season spotted wing drosophila (SWD) damage to berries, which were further increased when South Carolina strawberry growers observed infestation last month. We have now... more »

Field trials confirm efficacy of Delegate WG insecticide

Field trials conducted by Cornell University in 2015 reinforce the effective control of Delegate WG insecticide in combating troublesome pome fruit pests. Whether sprayed alone or tank-mixed, the study shows that Delegate provides consistent control... more »

Pruning key in managing blueberry stem gall wasp

Blueberry stem gall wasp is native to eastern North America, where it can infest new and actively-growing blueberry stems during bloom. It can be found in lowbush and highbush blueberries, and in managed and unmanaged... more »

Penn State Extension seeks volunteers in controlling spotted lanternfly

Penn State Extension is recruiting property owners to trap and destroy the spotted lanternfly in the quarantined areas of Berks, Bucks, Chester and Montgomery Counties. To participate, volunteers must own property with the preferred host... more »

Michigan growers adopt reduced-risk pesticide practices

The Integrated Crop Pollination Project has released a summary report from its 2015 survey of Michigan blueberry growers’ pollination practices. The survey of 240 blueberry growers delved into growers’ goals for pollination management, networks of information sources about pollination, and... more »

Six steps to optimize airblast sprayers

The idea behind any pesticide application is to get every drop to the crop. Spray or drift that goes into the air clearly missed the target leading not only to negative environmental and health effects,... more »

Monsanto shows interest in Bayer CropScience

Monsanto has reportedly shown interest in the possible acquisition of Bayer CropScience. Reuters reports that Monsanto executives recently held a meeting to discuss Bayer’s agricultural assets. Here’s more from Reuters: Among the possibilities discussed were an outright... more »

How USDA eradicated Oriental fruit fly from Florida

There’s a good reason why USDA and the Florida Department of Agriculture and Consumer Services (FDACS) constantly monitor more than 56,000 fruit fly traps they have strategically placed across Florida. An outbreak of exotic fruit... more »


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