The Secret to Disease-Free Tomatoes and a Bigger Harvest This Summer

Written by: Vanessa Dawson

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Time to read 2 min

Summer brings sunshine, blooms, and bountiful harvests—but it also brings humidity. And with that humidity comes the silent spread of garden diseases like powdery mildew, early blight , and leaf spot. These plant problems can appear overnight and wipe out an entire crop if not treated early and properly.

Why Humid Weather is Trouble for Gardens

High humidity creates the perfect conditions for fungal spores to land, germinate, and spread. If you notice white powdery residue, brown spots, or yellowing leaves, you might be dealing with an infection already in progress. That’s why prevention is key.

The Solution: Monthly Disease Protection

Instead of reacting to problems, treat your garden monthly with a 3-in-1 organic spray that defends against disease, strengthens plant immunity, and promotes healthier growth to double your garden harvest.

Arber’s Organic Tomato, Fruit & Vegetable Boost Ready to Spray is perfect for:

  • Tomatoes – Prevents early blight and leaf spot

  • Roses – Stops powdery mildew

  • Cucumbers & Squash – Controls downy mildew and wilt

How to Use the Organic 3-in-1 Boost

  1. Step 1: Connect universal sprayer to hose and concentrate bottle. Sprayer is designed for the optimal mix of water & concentrate.

  2. Step 2: Set dial on sprayer to 'ARBER' which will deliver concentrate at the appropriate dilution rate.

  3. Step 3: Spray area thoroughly until dripping wet. Repeat application every 2 weeks, or as needed. 

Why the 3-in-1 Ready to Spray Stands Out

  • OMRI Listed for organic use

  • Plant and planet-safe formula

  • Ready-to-use for easy application

  • Safe for pollinators, like bees and butterflies

  • Easy to integrate into any organic gardening routine

"This product helped my fruit trees avoid leaf curl. And it boosted my peach growth, harvest, and event taste! Highly recommend this product!

— Kathy C., ND

Ready to protect your plants while doubling your harvest? Shop Arber’s Organic Tomato, Fruit & Vegetable Boost, Ready to Spray.


Powdery mildew, blight, and other common garden diseases can wipe out your plants just as they begin to produce, But with a proactive, organic approach, you can stop disease before it starts and boost your garden’s productivity at the same time.

Quick Tips from Arber's Founder

FAQs

What plants can I use Organic Tomato, Fruit & Vegetable Boost on?

This product will work on all varieties of fruits, vegetables, herbs, and edible crops, including tomatoes, cucumbers, peppers, carrots, lettuce, strawberries, raspberries, blueberries, and more.

How much Organic Tomato, Fruit & Vegetable Boost should be applied for best results?

After determining the treatment area, we recommend applying the entire 16 oz bottle for up to 12,000 sq. ft. Treatment should take about five to six minutes to empty the solution over the treatment area. 

How quickly can I harvest my edible plants after spraying with Organic Tomato, Fruit & Vegetable Boost?

There are no limitations when using our Biologicals, especially when it comes to harvesting as our products are safe to treat and harvest within 30 minutes after application. So feel at ease to eat, spray, and play all in the same day!