How do I get rid of white butterflies NZ?

1 Hose off as many of the eggs, caterpillars and butterflies as you can from the plants. Then spray the affected plants with neem oil. 2 Cover the plants or garden completely with white netting from your local garden centre – the kind that covers but doesn’t shade, which will also protect against birds.

How do you stop white butterfly?

Deterrence. es or strips of white shopping bags tied into bows on bamboo stake. You need to place quite a few around a bed, somewhere between two and four per square metre. Other friends have cut Styrofoam boxes into cubes or used Styrofoam packing beads and threaded them on fishing line and hung them around the area.

Do marigolds keep white butterflies away?

Celery planted with cauliflower will keep away the white butterfly. Marigold is the best to battle against many insects, which hate the smell of the foliage and blooms. It can also be planted as a deterrent in those spots you want to stop a cat or dog doing their business.

What can I spray on caterpillars?

For plants, a regular spray of a molasses solution (1 tablespoon molasses, 1 teaspoon dish soap, and a liter of warm water) or a garlic solution (three crushed cloves of garlic, 1 tablespoon vegetable oil, 1 teaspoon dish soap, and a liter of water) will deter insects from munching.

How do I stop butterflies from laying on my plants?

Cover plants with horticultural fleece or fine netting to prevent butterflies reaching the leaves. Check plants regularly and pick off any caterpillars that do make it through. Grow nasturtiums as a sacrificial crop and move eggs and caterpillars from your brassicas to the nasturtium leaves.

How do you repel butterflies?

companion planting plants near or among brassicas and which repel the butterfly. These include aromatic herbs (lemon balm, sage, oregano, borage, hyssop, dill, rosemary) and/or high blossom flowers (tall marigold, calendula) companion planting plants at a distance and which attract the moths.

How do I get rid of white moths in my garden naturally?

For an alternative companion planting approach, strong-smelling herbs such as lavender, sage, and rosemary seem to deter cabbage moths from settling and laying eggs. Try planting them around the edges of your patch to form an odour barrier that doesn’t restrict your own access.

What plants do white butterflies hate?

Likes: Cabbages, broccoli, brussels sprouts, chinese cabbages, cauliflower, celery, beetroot, rocket and watercress. Dislikes: Really smelly herbs, like dill, sage and coriander.

How do I get rid of caterpillars NZ?

To get rid of caterpillars follow these steps:

  1. We recommend spraying with Organic Insect Control (naturally occurring pyrethrum), best applied late in the day. It has a 1 day withholding period when applied to fruit or vegetables.
  2. On non-crop plants, a systemic insecticide like PLANThealth Spectrum can be used.