University of Maryland Extension


This edition of Agronomy News includes articles on COVID-19, PPE shortages, essential worker permits, Syngenta settlement payments, spring weed control in pasture and hay, UME forage survey, Maryland sensitive crop locator, proactive management if herbicide-resistant...More info

High Tunnels - Overwintering Problems

Overwintering form of the two spotted spider mite
March 31, 2015 High tunnels (HTs) are up and running now and we usually do not see many pest problems early on, but there are some potential problems that could develop later in the season that get their start now. One potential problem is when the HT was not cleaned up after the previous year’s...

Odd Time to See Tomatoes with Mites

July 2013 A couple of weeks ago I reported high mite populations in some high tunnel tomatoes. This was not too surprising as the high tunnel environment can be conducive to mite build ups i.e., a hot dry environment. But in the past 10 days I have found mite problems in several tomato fields in...

Garlic Problems....Again

Garlic problems
May 9, 2013 Last year at about this same time, there were calls from growers about their garlic plantings turning yellow and wilting (fig. 1). When dug up, the bulbs were often times blackened and rotting with some or much of the basal plate or roots missing (fig. 2). The calls are coming in again...

Insect Pest Management in Eggplant

2008 While eggplant production in Maryland is rather small, they are grown over the entire state to supply vegetable stands with many varieties. Because of its value growers frequently apply pesticides regularly in order to protect their investment. This often leads to development of insect...

Using biopesticides and reduced-risk pesticides for insect control in high tunnel vegetable production

February 2011 Summary: Previous work by the PI has shown that if combined with the fungus Beauveria bassiana (Bb), diatomaceous earth may increase the efficacy of the fungal pathogen by causing slight fractures in the insect‘s integument and thereby increasing fungal infections. It is also...
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