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Colorado beetle

The Colorado beetle of the Solanaceae

Colorado beetle is one of the main enemies of vegetable gardens: it is found in land cultivated above all with potatoes or aubergines, as it is particularly attracted to solanaceae. It is not easy to eliminate it and eradicate it from your garden, yet it is important to be able to do it in order to save the crops, which otherwise could be completely destroyed with the proliferation of this insect. Unlike many other parasites, however, the Colorado beetle offers an advantage: the ease of identifying its presence. It is, in fact, a real insect of relatively large size, which appears easily visible to the naked eye. The Colorado potato beetleis a phytophagous insect that belongs to the beetle family: like the other insects of this category, it has a rigid shell that protects it and that has streaks of bright color that allows it to blend into the ground, but on the contrary makes it particularly visible when positioned on elements with a homogeneous color, such as large leaves or aubergines, of a dark color. The Colorado potato beetle does not directly attack the fruits of the plants, but compromises the green parts, which in turn will no longer be able to produce sugars and feed themselves, weakening and no longer being able to provide the necessary nourishment even to the fruits, which are no longer able to grow and develop.

Prevention


Prevention against Colorado beetle is a fundamental operation: this beetle has amazing resistance to chemicals and adaptability, developing immunity against different types of pesticides and pesticides over time. Prevention is even more important when you take into account the fact that once the insects are clearly visible on the surface of the leaves, it means that the infestation is already in an advanced stage. The Colorado beetle, in fact, during the winter period grows and proliferates at a depth of about 14 – 16 cm in the ground, only to come out to the surface with the arrival of spring and milder temperatures. In this period it will lay more eggs, increasing the numbers of the infestation and making it increasingly difficult to eradicate the colony. Even in the case of Colorado beetle, the first form of prevention involves the creation of a natural environment that is favorable to the development of crops, but not to that of insects and parasites. Fertilization and mulching are two operations that strengthen the seedlings, with the use, in particular, of organic fertilizers. If you see eggs when moving the ground, it is important to remove them immediately, to prevent them from giving rise to insects which in turn will continue to reproduce. Furthermore, being a particularly resistant insect, the problem can be prevented by choosing to plant particularly resistant varieties of solanaceae. Fertilization and mulching are two operations that strengthen the seedlings, with the use, in particular, of organic fertilizers. If you see eggs when moving the ground, it is important to remove them immediately, to prevent them from giving rise to insects which in turn will continue to reproduce. Furthermore, being a particularly resistant insect, the problem can be prevented by choosing to plant particularly resistant varieties of solanaceae. Fertilization and mulching are two operations that strengthen the seedlings, with the use, in particular, of organic fertilizers. If you see eggs when moving the ground, it is important to remove them immediately, to prevent them from giving rise to insects which in turn will continue to reproduce. Furthermore, being a particularly resistant insect, the problem can be prevented by choosing to plant particularly resistant varieties of solanaceae.

Natural remedies


The fight against Colorado beetle, if the infestation is not too large, can also be carried out through natural methods of prevention and control. One of the effective preventive methods is to place plants that keep it away, such as garlic, onion, beans or horseradish, near the crops sensitive to Colorado potato beetle. Alternatively, it is possible to introduce insect enemies of the Colorado beetle, but not of crops, such as Lebia grandis, nosema leptinotarsa ​​or edovlum puttleri, even if the latter is not always able to adapt to our climates, being of tropical origin. Useful remedies to be used as pesticides also exist in natural form: these are rock flour preparations or nettle macerates: this the latter can also be prepared independently and added to the watering water on a regular basis to make the soil unwelcome to the Colorado beetle. However, these preparations are effective when the infestation is not too extensive: otherwise, natural remedies may not be sufficient and you will have to switch to the use of chemical ones.

Colorado beetle: Chemical fight


The fight against Colorado beetle can be accomplished through biological methods or chemical methods. In both cases, you will find yourself having to deal with a plant that shows great resistance and adaptability, so targeted and early intervention is essential. The Colorado potato beetle can be contrasted with pesticides and specific products: the chemical fight is recommended in the event that the proliferation of the Colorado potato beetle is now evident, since aggressive products must be used that could also partially compromise the crops. The treatments should be carried out more than once and some attempts may be necessary before identifying the most suitable chemical product for the Colorado beetle and at the same time preserving the crops of your garden. Me too’

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