Arana Amarilla Vine
Arana Amarilla is a vine pest that attacks young grapes and causes partial or complete defoliation. This insect can also prevent new vine generations from forming. The main symptoms of the Arana Amarilla attack are related to general vine debilitation caused by the suction of its savia. In addition to defoliation and color change, the adult insect can cause other symptoms, including deformed hojas and prematurity.
The first attack inflicts deformations on the hojas, reducing the size of entre dos and racinos. The hojas affected by this acaro develop Amarillo color, and these changes coincide with the basal hojas. The Amarillo color is more pronounced in the Amarillo portion of the vina. It is not uncommon for the acarola to increase its poblaciones as it progresses through the plaga.
The arena Amarilla larvae can reproduce on a wide range of plants. The first step in preventing an attack is identifying the type of infestation. One of the most effective methods is to avoid a dense foliar mass that makes the acaro's work easier. If you can't find the larvae on your plant, you can take preventative measures.
In the case of Tetranychus urticae, this species has been shown to have adverse effects on the population of Eotetranychus carpina. Interestingly, the pest's eggs are reduced when introduced into the environment. However, in greenhouse studies, the two species were found to have a beneficial effect on each other. Induced responses in one species did not affect the other's reproduction.
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