plant health | Morning Ag Clips

June 27, 2018

Rust pustules on rose. (Courtesy of Mary Small)

PLANT HEALTH ...

Time for rust

Rust is a fungal disease that overwinters on fallen leaf debris and canes

May 16, 2018

soybeans

PLANT HEALTH ...

Soil-borne plant disease control methods

Cool, wet springs coupled with successively earlier planting dates favor pathogen infection

April 22, 2018

Powdery mildew on lettuce. (Photo by Margaret McGrath, Cornell University)

PLANT HEALTH ...

Common diseases in organic hoophouse greens

Foliar and root diseases in high-value, organic hoop house crops can prove to be challenging

April 12, 2018

Figure 1. Root and stem maggots attack a wide range of crop seeds and seedlings. (Photo: Ric Bessin, UK)

PREVENTING MAGGOTS ...

Controlling vegetable root & stem maggots

Planting into cool soils extends time plants are vulnerable to attack

March 26, 2018

Figure 1: Lower portions of the plant may decline or die-back as a result of Phytophthora root rot. Note excess water puddling. (Photo: Nicole Ward Gauthier)

PLANT HEALTH ...

Rainy season equals phytophthora disease

Wet soils are favored by a group of pathogens called water molds

January 30, 2018

Prolonged exposure to elevated levels of ethylene can cause leaf senescence and abscission. (Photo by Jeremy Jubenville, MSU Extension)

STUCK IN TRANSIT ...

Delayed shipments can stress vegetative cuttings

Tips to help get your plants back on track after being stressed due to a delayed shipment

December 7, 2017

A new fluorescence imaging system uses a large imaging area to provide information about plant health. It is designed for use in greenhouses or in the field and could one day enable farm machinery that automatically responds to plants showing stress. (Image Credit: Haifeng Li, Zhejiang University)

TECHNOLOGY ...

Innovative system images photosynthesis

Crop imager could enable ag machinery that automatically responds to stressed plants

December 5, 2017

Figure 1: Low-lying areas may hold surface water after excessive irrigation or heavy rain. (Photo: Julie Beale, UK)

PLANT HEALTH ...

“Wet Feet” of ornamentals

Knowledge of a growing site, drainage, and irrigation practices are helpful

August 14, 2017

(PHOTO: Carl Bradley, UK extension plant pathologist)

PLANT HEALTH ...

Southern rust in Ky: information for producers

Southern rust on corn confirmed in sample taken in Graves County

July 26, 2017

Figure 1: Symptoms of cucurbit powdery mildew begin as white, powdery spots on the upper or lower leaf surface. (Photo: Emily Pfeufer, UK)

PLANT HEALTH ...

Cucurbit powdery mildew taking off

Reports of powdery mildew have increased rapidly in cucurbit crops in the past 2 weeks