What are the opening hours?

Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 5pm

USU Extension - Plant Health

Name: USU Extension - Plant Health
Address: 5305 Old Main Hill, Logan, UT, 84322, US
Telephone: +14357972435

Home
United States
Logan, UT
USU Extension - Plant Health

Call Directions Website Contact the business

We provide education, research, and diagnostic work. Utah State University welcomes and encourages your participation through our social media channels.

The USU Extension Plant Health team involves entomologists, plant pathologists, and IPM specialists who's programming works to solve plant pest problems that concern Utah farmers and homeowners. Our goal is to provide a place to express and honor the diverse voices of our university. In order to achieve that end, we reserve the right to delete off-topic posts which may include spam, solicitations, comments irrelevant to USU operations, commercial comments, as well as comments that contain Private Sensitive Information (PSI) or Institutional Data, as defined by USU policy. Any questions or concerns regarding this disclaimer, or about a specific post, should be directed to USU's assistant director of social media.

10/07/2026

This summer, researchers from USU set up an experiment to improve Peach Twig Borer (PTB) monitoring in Utah peach orchards. We tested different pheromone traps, including a combination of attractants (acetic acid and terpinyl acetate) with or without solar-powered UV-A LED light. The research team is testing new trapping systems to assess their efficacy in attracting PTB females, as the current pheromone traps only monitor PTB males. Catch of some non-target organisms is also recorded to evaluate the impact on beneficial insects and other pests commonly found in orchards.

Are you interested in learning more about this study? Read the Plant Health fall newsletter for further details about this year's results (pages 8-11)!

bio

10/05/2026

The latest edition of our Utah Plant Health newsletter is now available! Read about cytospora canker, novel traps for peach twig borer, western grapeleaf skeletonizer and more!

Read the newsletter here:https://extension.usu.edu/planthealth/files/ph-newsletter/UtahPlantHealth-fall26.pdf

10/01/2026

The latest Vegetable Pest Advisory is now available, covering Flea Beetles, Cabbage Aphids, Pythium Fruit Rot, and Wireworms.

• Flea beetles have been seen in northern Utah. Populations are small and damage is minimal this time of year, so no control is recommended.
• Infestations of cabbage aphid are present throughout northern Utah. Inspect plants and control before dense populations form. Consider removing infested plants or spraying to manage this pest.
• Pythium fruit rot can occur when fruit is in contact with saturated soils, which may be more likely due to recent rainy weather.
• Wireworms are an occasional pest in potatoes, but damage to tubers may be apparent at harvest.

View the full advisory for more information:
https://pestadvisories.usu.edu/2026/10/01/flea-beetle/

08/31/2026

The latest Vegetable Pest Advisory is now available, covering Tomato Fruitworm, Watermelon Mosaic Virus, and Stink Bugs.

• Tomato fruitworm moths will be laying eggs soon. Scout solanaceous crops (especially those by corn) and if larvae are found, apply an insecticide before they burrow into fruit.
• Watermelon mosaic virus has been seen in cucurbits throughout Utah. Plants with the virus cannot be cured and should be removed to reduce the spread of disease. Aphids vector this virus, so control strategies should focus on managing populations early in the season.
• Stink bugs can damage vegetable fruits close to harvest. Scout regularly for eggs, insects, and fruit damage. In the garden, handpick adults and in the field, control with an insecticide if economic thresholds are reached.

View the full advisory for more information: https://pestadvisories.usu.edu/2026/08/31/wmv/

08/04/2026

The latest Vegetable Pest Advisory is now available, covering blossom end rot, squash bug, corn earworm, European earwig, and a beneficial insect spotlight on collops beetles.

• Blossom end rot: This fruit disorder is showing up now. Make sure plants are well watered. Remove affected fruit to allow other fruit to mature and reduce secondary infection.
• Squash bug: Nymphs are hatching now. Scout crops weekly. Remove and destroy eggs, nymphs, and adults. Target nymphs when using insecticides.
• Corn earworm: Corn earworm moths begin flight soon. Monitor carefully and spray as needed while silks are green.
• European earwig: Earwig populations build in mid to late summer. Only control if crop damage is observed, as earwigs can be beneficial. Control with cardboard or oil traps. If populations are unreasonably high, target with an insecticide in the evening when earwigs come out to feed.
• Collops beetles: These beneficial insects feed on aphids, caterpillars, lygus bug nymphs, mites, and whiteflies. To enhance beneficial insect populations, consider reducing pesticide use and planting a variety of flowering plants that bloom throughout the season for habitat and food.

View the full advisory for more information: https://pestadvisories.usu.edu/2026/08/03/ber/

07/22/2026

The latest edition of our Utah Plant Health newsletter is now available! Read about grass hoppers in field crops, irrigation water and harmful algae blooms, American plum borer, and more!

Read the newsletter here: https://extension.usu.edu/planthealth/newsletter

07/17/2026

The latest Vegetable Pest Advisory is now available, covering beet curly top virus, cucumber beetles, powdery mildew, Fusarium/Verticillium wilt, and spider mites.

• Beet Curly Top Virus: Symptoms are showing up now. Prevent the spread by controlling weeds around crop plants, using row covers to exclude pests, and removing infected plants immediately.

• Cucumber Beetle: Populations are growing now. If high numbers of adults and larvae are present, treat with insecticide to prevent damage to leaves, stems, flowers, and fruits.

• Powdery Mildew: Common in hot dry weather. Scout weekly and control early to reduce spread.

• Fusarium and Verticillium Wilt: Watch for symptoms when temperatures are high (90°F for Fusarium and 70 to 85 °F for Verticillium) and soil is moist.

• Spider Mites: Populations can increase rapidly during hot summer months and should be treated when populations are low.

View the full advisory for more information: https://pestadvisories.usu.edu/2026/07/16/bctv/

07/16/2026

Thank you to everyone for your interest in the USU pest advisories! We apologize that the fruit emails have been “missing” this summer. Everyone who lost their fruit has been in our thoughts, but the lack of fruit also means very reduced pest management. As a result, the IPM Program shifted priorities to other research and outreach efforts. Please know that next year, the fruit advisories will be back in full swing, along with a great fruit set for everyone (we hope)! If you have a specific fruit pest question related to your location (such as treatment timing or diagnosis), please email [email protected] directly.

04/27/2026

The latest Fruit Pest Advisory is now available, covering codling moth, woolly apple aphid, coryneum blight, and iron chlorosis.

Frost damage:
• Take our poll through the link below to see how widespread the frost damage on fruit was this spring.

On apple and pear:
• Codling moth: Most locations have a starting spray date (ignore if no fruit)
• Woolly apple aphid: This should be treated, even if fruit is lost.

On peach/nectarine and apricot:
• Coryneum blight: If no fruit, do not treat until next fall; Otherwise, rains can spread the fungus so watch the fruit.

On all fruits:
• Iron chlorosis: Whether you have fruit or not, do not let trees live with iron chlorosis year after year or they will decline. At this time of year, a foliar application is best.

View the full advisory for more information:
https://pestadvisories.usu.edu/2026/04/27/woollies/

04/18/2026

The IPM team spotted infections of coryneum blight – AKA shothole – on apricot fruits and leaves.

Check your own fruits and over this spring and summer, plan to apply a fungicide if a big rain (4+ hours) is in the forecast on a warm (77F or more) day.

Options are products containing myclobutanil (a few options for homeowners), captan, and more. Copper soap is organic but not highly effective.

Address

5305 Old Main Hill
Logan, UT
84322

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm

Telephone

+14357972435

Website

https://extension.usu.edu/planthealth

Alerts

Be the first to know and let us send you an email when USU Extension - Plant Health posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to USU Extension - Plant Health:

Want your business to be the top-listed cleaning service in Logan?