Considering insect covers for young brassicas

A cover installed early can keep insect pests from reaching young crops, but can also trap pests already underneath.

When we suggest this

• Your noteIt is 0–14 days after the planting date you gave.
• Your noteThis is a reminder window, not a prediction of growth. It does not start before that window.
• Your noteYour note gives an exact planting day for this plant; an approximate garden-wide date is not enough.
• Your noteYour note: no stage noted yet; or stage is seedling or growing or vining.
• Your notePlants that qualify in the same growing location share one task.

What would stop us suggesting it

• When you note a new stage, or the timing window ends.
• When no qualifying plants remain in that spot, or their recorded timing is too old.
• Done or Doesn't apply closes the reminder for the plants included. "Doesn't fit my setup" also suppresses this reminder for that spot this season.

What to do

1. Check those plants in that spot for insects before covering them.
2. If these crops need pest protection, fit insect netting over them and secure its edges at the soil.
3. Use breathable insect mesh in warm weather; a heat-trapping cover can overheat plants.

What we can't know

• Whether a cover is needed and whether pests are already inside.

The day range is a reminder window, not a prediction of plant development. An exact planting date is required.

Where this advice applies

All US regions.

For the listed crops; combine plants in the same growing location.

Exceptions

• Plants grown for flowers or seed, and plantings with pests already trapped under a cover.

Reviewed

Sources checked Sept 2026 · awaiting expert review

Gardenplanner research (AI-assisted), pending extension-qualified review

Rule id and version: shared-care.brassica-netting@1