The natural control of the corn stretcher, with the help of Ihneumonides

It is and remains one of the most important parasites of corn: the sting of corn. Due to climate change, it spreads more and more and causes holes in plants, breaking them and even deteriorating the corn. To minimize production and quality losses, the parasite can be controlled, in different phases:

• chemically (by applying substances intended for the protection of plants);
• mechanically (destroying with the help of the knives Horsesduring the soil processing period);
• Biological – For example, with the help of ihneumonidi (trichogram), natural enemies of crushing.

But before talking about the corn control, we understand the parasite itself.

The sting of corn (Ostrinia Nubilalis)

The stress of corn is a small butterfly. The butterflies do not cause damage to corn, but its caterpillars, which pierce the stems and pockets, resulting in small holes in the plant. The damage caused by the omissions of the corn are:

• Stalks of broken corn, especially on the bottom of the plant
• Interruption of the supply of the plant with water and nutrients
• Potential place of infection for fungal diseases and bacteria penetration

The infestation begins with the migration of the moles in the corn population of the previous year. Depending on the region, he starts in June and is intense in July. Once in the population, the females lay their eggs on the bottom of the leaves. One or two weeks later, the corn larvae hatches and begin to spread to nearby plants and pierce the upper part of the plant. During the vegetation, the omissions make their way, eating, through the interior, from top to bottom.

After the collection, they remain at the base of the stem and can winter in the corn stem that remains on the field. Next May, the kiss takes place. Therefore, the cycle and also the diffusion starts again.

One of the most important ways to combat corn stretching is therefore the actual destruction of corn rods during the cultivation of wiring, thus preventing the larvae. For this, the solution of the German manufacturer Horsch are the waste of culconotro TC vegetables, which you can read Here.

Distribution in the Corn crushing area

In English, the crushing is called European corn borerthat is the saint European of corn, for well -founded reasons, its origin is in southern and central Europe, from where, later, it was brought to North America and, in the meantime, spread all over the world.

The distribution is encouraged by the following:

• Good adaptability of the parasite
• Increase the surfaces of corn crops
• Good climatic conditions favored by climate change

Ihneumonids used against the corn stretcher

Parasites (Trichogram is the best.) which have about a millimeter are the so -called egg parasites. This means that they lay their eggs in the eggs of other parasites. In this case, in the corn eggs. When the wasps hatch, the egg that stretches corn is destroyed and the spread of harmful larvae is limited. The Ihneumonids have spread to the population, multiplied and parasites to different eggs.

For a success parasite of Ihneumonide waspsThe right time is important to apply beneficial insects. The beginning of the migration and the moment of the laying of eggs are decisive. To choose the right time, the official consultancy institutes help to monitor the development phases of the corn phases for different regions and offer adequate recommendations on the application Trichogram is the best..

The capsules are made of corn starch or cellulose, therefore biodegradable

The application of capsules with the wasps can be performed with the help of the car car -Propost Horsch Leeb

Bring ihneumonids within the population of the crushing

There are various methods and devices to do it. One of these is the application of small capsules, within which Ihneumonids are in four different development phases. After the capsules fell on the surface of the population, the ihneumonide leaves the capsules through a small crack. After that, they start looking for corn eggs. The different development phases guarantee that corn crushing can be controlled for a longer period of time.

The capsules are made of corn starch or cellulose, so they are biodegradable.

The capsules can be applied manually or, in the case of large surfaces, with drones or car cars -propulsive for herbicide, with sufficient ground protection. For example, even with a distribution technology mounted on a car launch -propulse Horsch Leeb.

Important information on the saint:

• The most important parasite of corn
• Distribute all over the world
• Causes production and quality losses
• Can be chemically controlled mechanically or biologically

Ihneumonids as a natural combat method:

• Prevention of the larvae of larvae of harmful aphids
• The right moment of the application is important
• It can be applied in small capsules.

The translation of the article appeared on Horsch's blog,