Carrot Rustfly  

(Image of Adult Carrot Rust fly)

(Image- carrot rust fly damage )

Additional Images

Controls

• BioNeem has proven highly effective against carrot rust fly.

• Rotenone

 

 

 

 

The adult carrot rust fly is a slender, shiny, black fly, about 5 to 6 mm long ( 1/5 inch), with a small reddish head and long yellow legs. 

 

Attacks several host plants including carrots, parsnips, celery, parsley, celeriac, fennel, dill, caraway, and coriander.

The larvae mine in the roots, causing holes that are subject to rot by secondary organisms. Heavy maggot feeding is indicated by drooping, discolored foliage.

The adult flies emerge in May and June. There is a pre-oviposition period of a few days before the females begin depositing eggs in the soil alongside  carrot plants. The eggs hatch in 7 to 10 days. The young larvae move downward feeding on the fibrous roots. As they grow, the larvae attack the taproot -- girdling it about halfway down. Young plants wilt and may die.

 

There are several generations each season. Maggots from the Late Summer generation cause the greatest damage. The damage generally increases the longer the carrots are left in the ground

Evidence of Rust Fly damage to carrot root

Eliminate host-weeds such as wild Carrots wild Parsnips and Hemlock in the area .

There are over 400 species of sawfly and they are found on a wide range of host plants including apples, pears, berries, and other soft fruit.  The larvae look like a caterpillar , but they are in fact related to bees and wasps. They are ferocious feeders, and will strip plants bear in a very short time.

The gooseberry sawfly produces 2 to 3 generations a year .The adults lay the eggs on the underside of the leaves low down in the centre of the bush, and the larvae are often not detected until the damage has been done. Defoliated bushes often give poor yields for several seasons , if they recover at all.

Sawfly larvae can defoliate a shrub very rapidly. bacterial spray or use a pyrethrum based product such as Rotenone

Vinegar Fly Image

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Vinegar flies are small, slow-flying insects usually found in the vicinity of over-ripened fruit and vegetables, and are generally confused with fruit flies, which is not much of a problem as the control and prevention of both is identical.  These insects are most abundant in the late summer months when fruits ripen and begin to ferment.

They are common nuisance pests anywhere there is fruit or vegetables be it Home, Markets, Restaurants.

 

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Found throughout North America. There are over 1200 known species of whiteflies. These tiny, insects feed in large numbers on leaf undersides of tomatoes, cucumbers, lettuce, and other plants by sucking out plant juices. They secrete a sticky, sugary substance called honeydew that may cause the growth of a sooty black fungus on leaves, and also attracts other insect pests. Eggs laid on leaf undersides hatch into larvae that look like flat, oval, semitransparent scales, which change into adult flies in about a month.

Controls: Spray with insecticidal soap or other approved insecticides such as Pyrethrin .Make at least two repeat sprays at weekly intervals since different stages of the life cycle are not susceptible to insecticides.

Whiteflies cannot survive freezing temperatures; in northern gardens they are reintroduced on infected plants each spring. Check purchased plants carefully before setting in the garden.  

• BioNeem has proven highly effective against carrot rust fly.

• Rotenone

The cabbage whitefly is common on many brassica such as Cabbage, Brussels sprouts, broccoli.
 
They are small white winged insects that live on the underside of brassica leaves. When disturbed they fly up in hoards .  Adult whiteflies are structurally similar in appearance to aphids, but they are covered in sooty grey hairs and have white wings. When flying in clusters they resemble a cloud of gnats.

 

The flies themselves do not often cause severe damage, but the "honeydew" excretions they produce can disfigure the plants (See Sooty Mold or " Honey Dew" ) This is not so much to do with the honeydew itself but the sooty or black moulds which grow on the honeydew. The sooty moulds will prevent leaves from photosynthesizing., and leave remaining plants unpalatable.

This pest is tolerable unless infestation become severe .