Skip to main content

Apply Fungicides before Problems Strike

The most effective fungicides are preventive sprays that help plants when they are vulnerable to disease causing pests.

When will fungus start?

Cool wet days in late spring or early summer are ideal conditions for fungus to put forth spores which can land and grow on young, tender leaves of annuals (tomatoes!) and trees especially with fruit. These spores grow on the living tissue and damage or kill the plant. To prevent severe damage, apply the appropriate fungicides for the plant you wish to protect.

To protect fruit trees and other plants susceptible to black spot, we suggest Fungonil. You will need to spray approximately every 7 to 10 days on a dry day while the cool damp weather is forecast.

To protect tomatoes, we suggest Serenade or similar biorational fungicide.  This type contains a product that helps fight off fungi that typically attack tomatoes.  For your planning purposes, you’ll need to spray approximately every 7 to 10 days through the growing season on a dry day so the product has the opportunity to dry on the plant surface.

Know your pest

For any pest control program, always confirm what pest you need to control. For example, a fungicide will do nothing for Japanese Beetle problems. We can help identify the issue if you bring us a sample in a sealed plastic bag or send a digital image.

Our pest-control products list what they are designed to control. Follow the instructions on the product exactly and you should be able to get through the challenges of crazy weather.

Our Summer Garden Advice

By mid-summer, perennial gardens can start to look overgrown, annual flowers begin to fade, and bugs may be munching on your vegetables.

Summer Articles

We’ve got answers!

Have you got a question for the experts? Search our repository of answers to the questions most asked by our customers.

Ask the Experts

Save More In Store

Ward’s Garden Rewards is a FREE Club for gardeners who want to earn points whenever they shop, all year long. Points are redeemable for dollars off future purchases during multiple redemption periods each year.  You’ll receive our newsletter in your email, too!

Join Garden Rewards

Plant Finder

Search by plant name or characteristics, build lists, and print out info.

Search Plants

Find a Landscaper

Browse our list of recommended gardeners, designers, and landscapers in the area.

Search Landscapers