Iowa State Yard and Garden

Starting in April, the Iowa Gardening Newsletter will be delivered twice a month through June! The first newsletter this month comes out on Tuesday. Subscribe to receive gardening info here: yardandgarden.extension.iastate.edu/get-newsletter

Tomato disease seems to be a common issue this year. It's too late to treat now, but accurate disease ID is important to prevent disease pressures in the following years. Helping IDing issues here: go.iastate.edu/2T8DNT

Following a flood, the safest course of action is to discard all plants and produce from the garden. Biological and chemical contamination is of concern for edible crops. Be the judge for your specific situation, but here are the details: go.iastate.edu/FFQYS1

Weather-Related Problems in the Vegetable Garden @ISU_YardGarden bit.ly/4oaE58s

Do you know how trees are affected by flooding? Learn about the symptoms of flood-stressed trees and which are more flood-tolerant than others with this free PDF 🌳 🌧️ ➡️ shop.iastate.edu/extension/prod…

After planting a new tree, sometimes you will see decline, dieback, or even death of the young tree.  When trying to determine the primary cause of the problem, several factors need to be given consideration. Decline of Newly Planted Trees article: go.iastate.edu/86QQ1J

Always examine transplants before buying them at your local garden store. Today I found powdery mildew on squash plants while perusing the vegetable aisle. Gardening is a challenge itself without bringing in an unwanted disease into the mix. Let’s be careful out there #Gardening

Get outside with your kids and learn about insects this summer with our bug catcher guide! Available as a PDF or a spiral-bound book, perfect for on-the-go adventures 🐛 ➡️ shop.iastate.edu/extension/prod…

🥕🍓 The 2025 ISU Fruit and Vegetable Field Day is Aug. 5! ✅ Soil fertility ✅ Pest & yield management ✅ Grower networking 🔗 extension.iastate.edu/news/iowa-stat… #Horticulture #ISUExtension #IowaAg #SpecialtyCrops #FruitAndVeg

Later June to early August is the best time to apply preventative insecticide to control white grubs in the lawn. Details here: go.iastate.edu/7XGIED

✏️Are you ready to test your weed identification skills? From amateur to professional, we've got competition for everyone! #ISUCrops 📍Iowa State Fair, Agriculture Building ⏰Compete anytime between 9 and 11:30AM on August 8 🏆Winners announced at 3PM 🔗go.iastate.edu/PEITWF

There are many benefits to deadheading, including improving the appearance of many plants, encouraging the formation of additional blooms, and preventing the development of unwanted fruits or seed pods. Details: yardandgarden.extension.iastate.edu/how-to/deadhea…

Now is the time to renovate June bearing strawberries to help control weeds, prevent disease pressure, reduce plant crowding, and increase sunlight to the plant crowns. Get all the details here: go.iastate.edu/CLHTGQ

I’ve had several weed ID ???s on Wild Parsnip. Reminder: The sap of wild parsnip contains a toxin that can cause a severe rash/blistering when it comes in contact with the skin and sunlight. Be careful! More info 🔗: crops.extension.iastate.edu/encyclopedia/w… #ISUCrops

🌱 Garden smarter with Garden Academy! ISU Extension’s revamped training kicks off Sept 2025 with two tracks: 🧑‍🌾 Iowa Master Gardener Volunteer (Apply July 14–Aug 22) 🏡 Iowa Home Gardener (Register Aug 25) 🔗 Details: extension.iastate.edu/news/isu-exten…

"It's summer and I can't water my lawn! Now what?" Many homeowners in Central Iowa are under a lawn watering ban. Homeowners can 1) let the lawn go dormant, and/or 2) raise the mower height to 3.5 to 4 inches. More info: yardandgarden.extension.iastate.edu/article/2025/0…

#DYK bacteria and fungi that cause plant diseases can become resistant to pesticides? Well, it's true! Microbial resistance can make it harder to control diseases over time. Read more about this: yardandgarden.extension.iastate.edu/article/2025/0…

June IPM Recap: Roundup: It's Not What it Used to Be!: yardandgarden.extension.iastate.edu/article/2025/0… Tar spot in central Iowa: crops.extension.iastate.edu/post/tar-spot-… Microbial resistance in home gardens: yardandgarden.extension.iastate.edu/article/2025/0… Upcoming weed science field day: crops.extension.iastate.edu/post/attend-20…

The beetles are coming! The beetles are coming! See our Japanese beetle article for info on this insect and management options: go.iastate.edu/1E1KLL

Now that’s un-bean-lievable! 🫛 Green beans are a garden favorite. Dan Fillius, extension horticulture specialist, shares tips on when to plant, how to care for legumes & why harvesting often matters. 🎧 Tune in: iowapublicradio.org/podcast/garden… #HomeGardening #ISUExtension

Tomato 🍅 Tuesday: Concentric fruit cracking can occur due to wide fluctuations in soil moisture, particularly heavy rain after a dry period. These conditions can cause fruit to expand too quickly for the skin to keep up, leading to cracks in the fruit #Tomato #Alabama #Gardening