University of Maryland Extension

Vegetable Insect IPM

The University of Maryland Vegetable Program utilizes integrated pest management (IPM) tactics in all of its vegetable production programs whether they are commercial, organic, or home and garden.  Integrated Pest Management relies on a combination of practices that consist of pest and environmental information along with available pest control methods, including cultural, biological, genetic and chemical controls, to prevent detrimental levels of pest damage by the most economical means, and with the least possible hazard to people, property, and the environment. IPM programs use current, comprehensive information on the life cycles of pests and their interaction with the environment. The IPM approach can be applied to both agricultural and non-agricultural settings, such as the home, garden, and workplace. IPM takes advantage of all appropriate pest management options including, but not limited to, the judicious use of pesticides. In contrast, organic food production applies many of the same concepts as IPM but limits the use of pesticides to those that are produced from natural sources, as opposed to synthetic chemicals. IPM, through its multi-tactic approach will:  lessen the potential for pesticide resistance, reduce chemical costs, limit human exposure to pesticides and lower the environmental impact of pest management.



Soil Pests a Problem in Sweet Potatoes - 9/2020

Feeding Damage on Blister Beetles - 9/2020

Spotted Wing Drosophila Found in Blueberries and Cherries in Maryland - 7/2020

Swiss Chard with Leafminers and Seed Maggot Update – 7/2020

Problems with Pollination in High Tunnel Tomatoes – 7/2020

Broad Mites Found in Maryland Caneberries – 7/2020

Cyclamen Mites Found in Strawberries – 7/2020

Low Level of Two Spotted Spider Mites in Strawberries - 5/2020

Allium Leaf Miner-Again-Really - 5/2020

Allium Leaf Miner Active and Spreading in Maryland - 5/2020

Red Legged Winter Mites Still Spreading in Leafy Greens - 4/2020

Seed Maggots Very Active in Our Area on Early Planted Vegetables - 4/2020

Managing Some Hard to Control Vegetable Pests  - 4/2020

Allium Leafminer Active and Spreading in Maryland - 4/2020



Leafhopper Damage Found on Fruit and Vegetables - 9/2019

RKN in Vegetables - 9/2019

Yellowstriped AW and Blister Beetles - 9/2019

Garlic Bulb Mites - 8/2019

Squash Vine Borers and Pumpkins - 8/2019

Stinkbug Damage Found in Tomato Fields - 8/2019

Thrips Feeding Damage to High Tunnel Peppers - 8/2019

Two Spotted Spider Mites on High Tunnel Vegetables - 8/2019

Allium Leaf Miner Moving South in Maryland - 6/2019

Flea Beetle and Tomato Early Blight - 6/2019

Beet and Spinach Leaf Miners - 6/2019 

Striped Cucumber Beetles and Bacterial Wilt - 6/2019

Broad Mites on High Tunnel Tomatoes - 6/2019


Odd Symptoms in Tomato Plants Turnout to be Viruses - 9/2018

Mites Everywhere - 9/2018

Viruses in Cucurbits - 9/2018

Watch for Aphids in Melons - 7/2018

Bacterial Wilt Problems in Cucurbits This Year- 7/2018

Seedcorn & Cabbage Maggot Damage Bad in Some Vegetable Fields - 7/2018

Spinach Leafminer and Sow Bug Damage - 7/2018

Strange Mite Pest Found in High Tunnel Vegetables - 7/2018

Watch for Thrips in Vegetables. - 7/2018

Allium Leafminer Active in Maryland - 4/2018

Insect and Mite Troubles in High Tunnel Tomatoes 4/2018

Mild Winter Induces Three Pest Problems This Year - 4/2018

Spinach Crown Mites in Maryland Spinach- 4/2018

Why Are Twospotted Spider Mites Such Problems Lately - 4/2018


Insects and Other Pests in High Tunnel Vegetables (presentation) - 5/2017


Potato Leaf Hoppers on Hops - 7/2016

Garlic Viruses - 7/2016

Allium (Onion) Leafminer - 5/2016

Mites (Two Types) Found in Strawberries - 5/2016

Perfect Weather for Seed Maggots and Other Soil Pests - 5/2016

Tomato Pollination - 3/2016


Bad Year for Stink Bugs - 8/2015

Bacterial Spot and Canker Bad This Year in Tomato Fields - 8/2015

Flea Beetle Feeding and Early Blight - 6/2015

Plants that Attract Pollinators and Natural Enemies (presentation) - 6/2015

Seed Maggots a Problem in Many Vegetable Fields This Spring - 5/2015

Garlic Problems in 2015 - 4/2015

High Tunnels - Overwintering Problems - 3/2015


Virus Infections Common in Some Pumpkin Fields This Year - 8/2014

Squash Vine Borers and Squash Bugs Very Active This Year - 7/2014 

Virus Transmission by Striped Cucumber Beetle in Pumpkins - 6/2014

Organic Weed Control in No-Till Vegetable Systems - 5/2014

New Grower Training - Vegetable IPM - 2/2014

Gold Flecking in Tomatoes Caused by Many Things - 2/2014

Six Invasive Pests to Watch for in 2014 - 1/2014

Integrated Pest Management for Vegetables: A Program Evaluation to Determine Value - 1/2014


Unusual Virus Found in Maryland Pumpkin Field - 8/2013

Stink Bug Damage Common in Tomatoes This Year - 8/2013

Odd Time to See Tomatoes with Mites - 7/2013

High Tunnel Tomatoes with Mite Infestations - 6/2013

Spotted Wing Drosophila in Cherries in Southern Maryland - 6/2013

Seed Maggots Very Bad This Spring - 4/25/2013


Garlic Bloat Nematode Found in Several Garlic Samples - 5/2012

Brown Marmorated Stink Bug in Peppers - 8/31/2012


Spotted Wing Drosophila - 8/26/2011

Transmission of the yeast Eremothecium coryli to fruits and vegetables by the Brown Marmorated Stink Bug - 3/2011


Gold Flecking in Tomato Not Caused by Thrips or Mite Feeding - 11/2010

Asparagus Beetle Damage Greater This Season - 4/2010


Cucurbit Pest Management - 2009

Vegetable Variety Trials


Using Nitrate-N Petiole Sap-Testing for Better Nitrogen Management in Vegetable Crop - 2008

Insect Pest Management in Eggplant - 2008


Improving the Management of Strawberry Sap Beetle in Small Fruit

Common Stink Bugs of the Mid-Atlantic - Hemiptera: Pentatomidae

Understanding a Major Pest Problem in the Mid-Atlantic - A Survey for Thrips

Insect Controls

Thrips and Tree Pollen in Vegetables

Examining an Organic Control for Flea Beetles on Eggplant

Presence of Cucurbit Virus Diseases in the Mid-Atlantic

Thrips Overwinter on Winter Annuals in Maryland

Using Beauveria bassiana in High Tunnel Pest Management

Insect Pest Management in Potato

Insect Pest Management in Peppers

Insect Pests of Tomato

Tarnished Plant Bug (Lygus) Management in Strawberries

Using Biopesticides and Reduced-Risk Pesticides for Insect Control in High Tunnel Vegetable Production

Bulb Mite Found in Problem Garlic Fields

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