Appearance and some features of flies
Carrot fly is an insect of small size, whose length is 4.5 mm. the Trunk he's shiny and black, covered with gentle fuzz. Head red-yellow, antennae and legs yellow just. The wings of flies are transparent, with yellowish-brown veins.
The first generation of these flies usually appears in early spring. They lay their eggs in moist earth at the base of the stems of carrots. After a week of them formed larvae pale yellow color with a length of 5 mm. They start to penetrate the root and gnaw through there moves. You have reached the desired size, after three weeks, the larvae emerge from the root, and then pupate.
The second generation of flies appear at the beginning of July to the end of June. Larvae of the second generation exactly the same live, maximum spoil carrots, and towards the autumn they pupate and spend the winter in the soil.
The appearance of the affected carrots
Identify the affected with carrot fly carrots can be yellowed and withered the tops. If you look good, at the root collar can detect. If such a root to dig, you can see the color change and deformation. Over time, the carrot will start to rot, crack and acquire a disgusting smell.
Such a carrot has, of course, not edible. The fly is capable of hitting even the celery, parsley, parsnips. Most pest still loves to destroy carrots, so we need to think about the suppression of the fly is necessary before planting.
It is best to select for planting those varieties of carrots that are resistant to the pest. "Vitamin 5", "calgari F1", "perfekte". It is also important place for planting. In dry soil the eggs of the carrot fly are killed, and in a moist feeling good. Why not plant carrots in the shade, the valley and places where moisture builds up. The place should be blown by a air, and warm up well.
It is necessary to plant carrots in a new place and the old land use after 3 years. You should not plant carrots where growing other umbrella culture.
Empirically, it was found that garlic and onions deter carrot fly. Therefore, you must try to plant mixed or near the carrots onion and garlic. Get double benefit — onions deter carrot fly, and the carrot — onion.
Carrot seeds before sowing should be treated with ototopical, fitotsid-R or Trichoderma. Sow carrots better not a lot to minimize the thinning. The smell of pulled out carrots will attract a fly, because it focuses mainly on smell.
If you still need to do thinning, you should first spray the carrots boiled red or black hot pepper. The smell of this liquid will be able to successfully drown out the smell of carrots.
Pull the carrots should not throw around, better to take it further away from the beds, folded in a compost pit and cover it with humus, earth, peat.
Additional measures to deter carrot flies
In the summer you can sometimes spray the carrots with infusion of wormwood, garlic or tomato leaves. To prepare this infusion, it is necessary to finely chop the tarragon, to rearrange the pieces in a ten-litre bucket and pour boiling water. When the liquid infusion, the infusion should drain and divide into 3 parts. Each part then must be diluted eight liters of water. The remains of wormwood can be put in the aisles.
For the infusion of tomato leaves is necessary to take 4 kilograms of leaves, chop and pour ten litres of water. Further, the capacity put on fire and boil for 30 minutes. Then it is necessary to let the liquid steep for 5 hours. Strain to the infusion of tomato leaves add 50 ml of liquid soap. This is necessary to ensure that the infusion is better stuck to the carrot tops. Immediately before use, the infusion is diluted 1 to 3 with water.
Onion infusion is done as follows: 300 grams of onions pour 2 liters of boiling water and left in this form on the day. Concentrated infusion is then filtered and diluted with ten liters of water and add 30 milliliters of liquid soap.
When will come the autumn, after the harvest had to dig all the carrot bed with a shovel. Thus on the surface would be oculistica larvae, which will die in the cold. To protect the crop from pest it is possible, but you need time to take the right steps.