Fruit set

Episode 7: Pests, disease & plant health

“Why is that pest there?”

Steve

Immunity as an outcome of plant health, and what the pest is trying to tell you before you reach for the spray.

  • About an hour
  • Four parts of about 15 minutes
  • A take-home for the shed wall
Watercolour of a bean plant setting its first pods, a few flowers left, roots in the soil below.
fruit setOne bean plant, painted from seed to harvest.

The big idea

Ask why first.

The usual answer is what to spray and when. Steve’s first question is why the pest turned up at all.

Watercolour of a brass magnifying glass over a beetle on a chewed green leaf.

A pest is a message

Pests and disease aren’t just bad luck. They turn up most on plants that are out of balance, so a pest is often telling you something about the plant’s health before it tells you what to spray.

This episode treats immunity as an outcome of plant health: health first, and protection follows.

What’s inside

Four parts, about an hour.

Watch it in one sitting, or a part between jobs. Each one flows into the next.

After this one, you’ll…

  • ask why a pest is there before you reach for the spray
  • read pests and disease as a report on plant health
  • trace soft, sappy growth back to nutrition
  1. 0–15 min

    Why is that pest there?

    Asking the question before reaching for the spray.

  2. 15–30 min

    An open door

    Soft growth, unbuilt nitrogen, and what draws a pest in.

  3. 30–45 min

    Immunity is an outcome

    Health first; protection follows.

  4. 45–60 min

    Reading the signs

    What pests and disease tell you about nutrition.