In this article morphological and biological features of a carrot fly are described. Measures of fight against it are given.
It is impossible to grow up carrots – any worm is got. What it for the wrecker and how with it to fight?
Most likely, it is a carrot fly. Its larvae (chervyachki) grow in the length of 7-10 mm. Zimuyoet the wrecker in the soil in the form of dolls in pupariya or larvae – in the middle of root crops in storage or in a field (on a bed). Flies of the first a pokoleyoniya take off (leave from pupariev) in the spring when the soil will get warm till 15-17 ° (April-May). And at once nachinayut to postpone eggs (to 200 pieces) having their small small groups near a root neck of moyolody plants of carrots, parsley, a parsnip, a celery and other rasyoteniye of family of seldereyny (zonyotichny). Eggs in 5-12 days leave larvae ("worms"), koyotory just and damage a rasteyoniya. They are fed 27-30 days. Then pupate in the soil or in the middle of the damaged root crops. In 30-40 days (in July-August) vyletayut flies of new generation also postpone eggs. From them otrozhdayutsya larvae ("worms"), which and povrezhdayut the main crop of carrots. Larvae of a fly gnaw through young backs of carrots, and in more developed plants bite into the middle korneplodov and do in them courses.
Fight measures. To avoid or at least to reduce harm from a carrot fly, it is necessary to sow carrots as soon as possible. Not zagushhajte crops and svoyevyoremenno thin out them.
In spring summer of a fly (a koyonets of April – the beginning of May) obrabatyvat beds preparations aktellik, arrivo, sherpa. Repeatedly it is necessary obrabatyvat in July-August at summer of vtoyory generation of a fly.
(On Hozyain newspaper materials)