Pests
Index of the most common pests in ornamental species in parks and gardens and which can be treated with Endoterapia Vegetal.
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Pine Processionary Caterpillar
Scientific name: Thaumetopoea pityocampa
Affected plant: Species from the genres Pinus, Cedrus and sporadically Larix
It is a lepidopteran from the Thaumetopoeidae family. The birth of the caterpillars begins the second week in June in cold places and the second week in July in warmer places and it ends in September. In a period of three days they lay the eggs from which the caterpillars will emerge after 4-5 weeks.
They live gregariously; at the beginning, they all over the tree and when cold arrives, they build a nest-pouch of white silky hairs in the sunniest part of the tree, from where they come out when the weather is favourable for feeding. During the months of January, February and March (depending on the weather conditions) they descend from the pines making up a very characteristic procession searching for a good place to bury themselves and turn into a chrysalis
Not all the moths are born the first year, an important part is born after 2 to 3 years and a few in later years.
Damage is done by the caterpillars, which devour the leaves to feed; at the beginning half eaten and dry leaves can be spotted and later, high defoliations. This causes a decrease in the growth, weakness and a predisposition to be attacked by perforating insects.
In urban areas or those peopled or with animals, there is a high degree of danger due to the stinging hairs of the caterpillars, specially damage to the eyes or to allergic people, as well as an unsightly look of the trees.
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