|Series||CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches -- no. 83821, Circular -- no. 32.|
|Contributions||British Columbia. Horticultural Branch.|
|The Physical Object|
|Pagination||1 microfiche (8 fr.)|
Recent experiments with regard to the control of the cabbage root maggot, Phorbia (Chortophila) brassicae, show that the application of corrosive sublimate is more efficacious than the use of tarred felt discs. This pofson should be applied directly to the roots by means of a watering can at a strength of 1 part to 1, parts of water or 1 oz. to 50 pints of : H. C. Huckett. Cabbage root maggots are most problematic in late summer, when populations are high enough to damage fall crops of cabbage, cauliflower, and closely related crops. Managing Outbreaks: Remove badly affected plants and swish their roots in warm water to remove maggots. Cabbage root maggots are white, legless, and about ⅓ inch long. As with most maggots, they clump in groups and will feed voraciously on root systems of cole crops. The cabbage fly is tiny, grey and fragile, and will emerge in early spring. Found primarily around cruciferous plants, this species of root maggot can be found worldwide. Cabbage root maggot infestation tends to cause a slowing of growth, followed by yellowing of leaves and wilting of plants. For smaller plants like radishes, a .
Cabbage root maggot management is primarily preventative. Management Notes. There are a number of natural predators and parasites of cabbage maggots in Ontario. Adults of the rove beetle (Aleochara bilineata) are predators of cabbage maggot eggs and larvae. Larvae of rove beetles parasitize from 9 to 77% of cabbage maggot pupae in Ontario. How to Control Cabbage Root Maggots (and other pests) without Pesticide A cabbage, in it's natural, home-grown garden environment is truly a thing of beauty. Unlike the neatly trimmed green orbs we find in the grocery store, in their natural garden state they more resemble a giant green on: Portland, Oregon. Cabbage root maggots are the larval stage of the cabbage root fly. The cabbage root fly is a small, grey fly that looks like a house fly but more slender. The cabbage root fly will lay its eggs at the base of a plant and when the eggs hatch they become small, white legless worms. Flies - root maggots. Root maggots are the larvae of flies. Adults of most species resemble houseflies; the onion maggot fly is further distinguished by its odd humpback. The maggots are generally fat, whitish grubs growing to 1/3" long and tapering to a pointy head. They emerge from eggs laid at the base of host plants, and eat their way.
The cabbage root maggot and its control in Canada with notes on the imported onion maggot and the seed-corn maggot. Canada, Dept. Agr., Ent. Bull. Huckett, H. C. Cited by: Root maggot feeding can weaken or stunt the growth of plants. In the case of cabbage root maggots, infested crops such as broccoli, cabbage, radishes and turnips wilt during the heat of the day. Onion root maggots tunnel into the bulbs of onions and deform root crops, such as carrots and radishes. Cabbage maggots are the larvae of Delia radicum, or the cabbage fly, which is also known as the cabbage root fly, root fly, or turnip fly. These are often mistaken for houseflies, although they are about half the size. Different types of root maggots can bring heavy infestation in a specific group of crops. For instance, cabbage root maggots are common in Brassica crops. Symptoms. Most of the symptoms of root maggots will be apparent in transplants and seedlings. Watch out for the following signs to monitor their presence, and in turn, to act immediately.