Fruit and Vegetable News April 2022 header
Updated: February 2, 2024
By Emily Zobel

April 2022  |  Volume 13, Issue 1

Fig. 1 Onion leaf blade showing linear white dots made by female Allium leaf miners. Photo: G. Brust, UMD

Check for Allium leaf miner in onions and leeks over the next few weeks

Jerry Brust, University of Maryland Extension, IPM Vegetable Specialist

If you grow leeks or onions or other Allium species, now and for the next few weeks is the time to watch for the tell-tale marks left by Allium leaf miner. Allium leaf miner Phytomyza gymnostoma tell-tale marks consist of many linear small white dots (made by the female’s ovipositor) that appear in...Read More

Edema problem in high tunnel tomatoes

Jerry Brust, University of Maryland Extension, IPM Vegetable Specialist

I recently received an inquiry from a high tunnel grower about unusual symptoms on tomato leaves. The tomatoes were planted in early March, and in the past few weeks developed blisters or callus-like growths along...Read more

Fig. 2 Underside of tomato leaf showing mild symp-toms of edema. Photo by G. Fearnow
Photo by G. Brust
Healthy apple blossoms. Image: Penn State
Image: Penn State

Using Plant Growth Regulators to Improve Apple Return Bloom

Pranoy Basu & Macarena Farcuh, Ph.D. Assistant Professor and Extension Specialist, University of Maryland, College Park

Return bloom is a crucial factor in maintaining crop yields in apple trees year-to-year, especially in strong biennial bearing cultivars. In apples, the fate of the...Read more

  • Line drawing of vegetables

    Mid-Atlantic Commercial Vegetable Production Recommedations

    The Mid-Atlantic Commercial Vegetable Production Recommendations Guide is available for free

  • Fig.1 Common Asparagus beetle and eggs on asparagus. Photo: Ward Upham, Kansas State University, Bugwood.org

    Early Spring Vegetable Insect Scouting Tips

    Photo: Ward Upham, Kansas State University, Bugwood.org

Photo: F. J. Louws, NCState University https://content.ces.ncsu.edu/botrytis-cinerea-botrytis-fruit-rot-and-blight-on-strawberry
NCState University https://content.ces.ncsu.edu/botrytis-cinerea-botrytis-fruit-rot-and-blight-on-strawberry

Botryis Fruit Rot (Gray Mold) and Crown Rot in Strawberries

Gordon Johnson, U.Del Extension Vegetable & Fruit Specialist

Strawberry growers in the region should initiate programs to control Botrytis fruit and crown rots in strawberries. Gray mold of strawberry fruit is caused by the fungus Botrytis cinerea. This pathogen can also cause crown rots that...Read more

Spring Pest Scouting in Strawberries

Haley Sater, University of Maryland Extension Ag Agent-Wicomico County

With the majority of freezing night time lows behind us, strawberry growers should begin scouting for pests during bloom. Earliglow is already in bloom on the...Read more

Fig. 1 Western flower thrips. Photo: P.M.J. Ramakers, Applied Plant Research, Bugwood.org
Fig. 1 Western flower thrips. Photo: P.M.J. Ramakers, Applied Plant Research, Bugwood,org

Vegetable & Fruit News, April 2022, Volume 13, Issue 1 (pdf)

Vegetable & Fruit News is a research-based publication for the commercial vegetable and fruit industry available electronically from April through October.  Published by the University of Maryland Extension Agriculture and Food Systems team.

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EDITOR

Emily Zobel
University of Maryland Extension Agent - Dorchester County
501 Court Lane, Room 208
Cambridge, MD 21613
Phone: (410) 410-228-8800
Email: ezobel@umd.edu

Note: Registered Trade Mark® Products, Manufacturers, or Companies mentioned within this newsletter are not to be considered as sole endorsements. The information has been provided for educational purposes only.