UMass Extension Greenhouse Crops and Floriculture

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UMass Extension Greenhouse Crops and Floriculture

A page about growing greenhouse crops and flowers by the UMass Extension Greenhouse Crops and Floriculture program.

UMass Extension Greenhouse Crops and Floriculture Program provides information about growing greenhouse crops and flowers. Watch this page for upcoming events and updates. Share ideas about greenhouse crop and flower production and pest management.

05/22/2026

Highlights from Greenhouse Visits
Week of 5/18/2026

In this Issue:
Watering and Fertilizing Plants in Retail Area

https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-may-22-2026

Greenhouse Updates will be posted regularly through the Spring.

Photo: Phosphorus deficiency of cauliflower by Geoffrey Njue

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05/01/2026

Highlights from Greenhouse Visits
Week of 4/27/2026

In this Issue:
Magnesium (Mg) Deficiency of Tomato Plants
Botrytis Blossom Blight on Petunia

https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-may-1-2026

Greenhouse Updates will be posted regularly through the Spring.

Photo: Botrytis blossom blight on petunias by Angie Madeiras

04/24/2026

Highlights from Greenhouse Visits
Week of 4/20/2026

In this Issue:
Bacterial Leaf Spot on Zinnia
Thrips parvispinus (Short-spined thrips) on Peppers

https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-april-24-2026

Greenhouse Updates will be posted regularly through the Spring.

Photo: Thrips parvispinus damage on pepper plants by Geoffrey Njue

04/17/2026

Highlights from Greenhouse Visits
Week of 4/13/2026

In this Issue:
Monitor Substrate pH for Iron Inefficient Crops
Botrytis Blight on New Guinea Impatiens

https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-april-17-2026

Greenhouse Updates will be posted regularly through the Spring.

Photo: Iron deficiency in petunia by Geoffrey Njue

04/10/2026

Highlights from Greenhouse Visits
Week of 4/6/2026

In this Issue:
Nitrogen Deficiency in Geranium and Petunia
Aphids on Pansy and Hibiscus

https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-april-10-2026

Greenhouse Updates will be posted regularly through the Spring.

Photo: Hibiscus in a Quarantine Greenhouse by Geoffrey Njue

04/03/2026

Highlights from Greenhouse Visits
Week of 3/30/2026

In this Issue:
Heat Stress of Geranium
Aphid Plant Banker System

https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-april-3-2026

Greenhouse Updates will be posted regularly through the Spring.

Photo: Heat Stress Symptoms of Geranium by Geoffrey Njue

03/27/2026

Highlights from Greenhouse Visits
Week of 3/23/2026

In this Issue:
Iron Deficiency Symptoms in Gerbera
Possible Anthracnose Leaf Spots on Pansies

https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-march-27-2026

Greenhouse Updates will be posted regularly through the Spring.

Photo: Iron deficiency in Gerbera by Geoffrey Njue

03/20/2026

Highlights from Greenhouse Visits
Week of 3/16/2026

In this Issue:
Pinching
Slug Damage

https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-march-20-2026

Greenhouse Updates will be posted regularly through the Spring.

03/13/2026

Highlights from Greenhouse Visits
Week of 3/9/2026

In this Issue:
Thrips parvispinus (Short-spined thrips)

Greenhouse Updates will be posted regularly through the Spring.

https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-march-13-2026

03/09/2026

Highlights from Greenhouse Visits
Week of 3/2/2026

In this Issue:
Aphids
Western flower thrips
Fungus gnats and shore flies
Iron deficiency symptoms on Vinca vine (Catharanthus)
Chilling injury on begonia plugs

Greenhouse Updates will be posted regularly through the Spring.

https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates

05/21/2025

Highlights from Greenhouse Visits, Week of 5/12/2025

In the latest Greenhouse Update: powdery mildew on columbine, botrytis on New Guinea impatiens, and two spotted spider mites on Thunbergia. Please visit the following link to access the message –

https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-may-21-2025

Photo by G. Njue

Address

University Of
Amherst, MA
01003

Telephone

+14135452965

Website

http://ag.umass.edu/greenhouse-floriculture

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