Arber Organic Tomato, Fruit & Vegetable Boost 16 oz

Arber Organic Tomato, Fruit & Vegetable Boost 16 oz

By Arber
$25

Vegetables, on alert.
Every two weeks, up to harvest.

How often?

  • Free ground shippingWhen lights, pots and Arber come to $75
  • Works with our bugsEach Arber page gives the wait before a release
  • Made by ArberPlant care made from biology

01 · What it's for

Not a fertilizer. A wake-up call.

Giant knotweed extract on a hose-end sprayer that gets tomatoes, fruit and vegetables to raise their own defenses before disease arrives.

Check before you order

  • It goes on a garden hose. This is for gardens and yards, not houseplants or indoor spraying.
  • It's a protectant, not food. Feed separately.
  • Every 2 weeks, up to the day of harvest.
  • Our beneficials can go out once it dries.
At a glance
Active
Extract of giant knotweed (Reynoutria sachalinensis), 5%
Comes
On a hose-end sprayer, 16 oz
How often
About every 2 weeks, up to harvest
Tomato, Fruit & Vegetable Boost

02 · With our beneficials

Fine alongside
our beneficials.

It doesn't go after insects or mites, so the only wait is for the spray to dry. Release on the same day if you like.

Once the spray has driedthen release any of our beneficials

From our spray timing table, the same one Toby uses. Asking about a different spray? Ask Toby in the chat.

03 · Works with

Goes well with

Feeds itFruit & Veggie FertilizerView →Pairs withInsecticide for Tomatoes & VegView →

04 · Set it up

Spraying

  1. Attach

    Attach

    Screw the bottle onto the hose-end sprayer and attach your garden hose.

  2. Set the dial

    Set the dial

    Turn the dial to ARBER and open the water.

  3. Spray until it drips

    Spray until it drips

    Cover the plant, tops and undersides, until it just starts to drip.

  4. Every 2 weeks

    Every 2 weeks

    Repeat about every two weeks, or as the label says for heavy trouble.

05 · Field notes

Plants have an immune system.
This one rings the bell.

A false alarm, on purpose

How it works

A false alarm, on purpose

Knotweed extract triggers the response plants make when they sense an attack, so they thicken cell walls and build defensive compounds ahead of time.

The maker

Arber

Plant care made
from biology.

Arber builds its range from living things: bacteria that guard leaves, a plant extract that wakes up a plant's own defenses, and nutrients from produce that would otherwise have been thrown away. Its sprays use the same kinds of actives commercial growers rely on, registered with the EPA.

We carry it because its sprays can share a plant with our bugs when the timing is right, and every Arber page here gives you that timing.

Bacteria
that guard leaves
Plant extracts
that switch on defenses
Upcycled produce
turned into plant food
Bio InsecticideBio InsecticideInsecticide for Roses & FlowersInsecticide for Tomatoes & Vegetables

Shop all Arber →

Before you order

Your questions, answered

Something else? Ask Toby in the chat, bottom right.

Can I use it with beneficial insects?

Yes, once the spray has dried. In testing, the same extract was harmless to cucumeris and Aphidius.

Can I use it indoors?

No, it needs a garden hose and it's labeled for outdoor plants.

Is it a fertilizer?

No, despite the name. It works on the plant's defenses. Feed with Fruit & Veggie Fertilizer.

How do I know I've covered it?

The undersides glisten too. Most pests and spores sit under the leaf, so tip the spray up from below before you move on.

More about Tomato, Fruit & Vegetable Boost

Despite the name, this one isn't a fertilizer. It's the same giant knotweed extract as Arber Bio Protectant, on a hose-end sprayer, and it nudges vegetable plants into raising their own defenses against disease.

Outdoors only. Spray every couple of weeks through the season; it can go on right up to harvest day. Fine with our beneficials once it dries.

Ready when you are

Tomato, Fruit & Vegetable Boost

Vegetables, on alert. Every two weeks, up to harvest.

More help

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