2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38
Most often, squash is affected by the same diseases as cucumbers. And among the main reasons for the occurrence of most ailments, there are sharp temperature drops and cold watering. Any summer resident on whose site these beautiful vegetables grow will be useful to know how various diseases manifest themselves on them - this will greatly facilitate the subsequent fight against ailments
White rot
The main symptom of this misfortune is the formation of a sufficiently dense white bloom on vegetative patissons, provoking further softening and subsequent decay of tissues on leaf petioles, stalks and fruits. In most cases, the development of the disease in patissons grown in greenhouses is accompanied by increased air humidity.
Anthracnose
On the stems and on the leaves of the squash, the formation of very unsightly spots, painted in light brown tones, begins. The fruits do not go unnoticed by the harmful ailment - deep sores filled with pinkish mucus develop on them. If the air humidity is too high, the disease will develop at a truly lightning speed.
Gray rot
When affected by this ailment, rather large brownish specks can be seen on the squash leaves. The stems of the growing squash begin to rot, and the fruits are slowly covered with weeping brownish specks with a fluffy grayish bloom.
Root rot
This attack causes a strong withering of the leaves with a gradual drying out of all lashes and a rather rapid death of the roots. The development of such a destructive ailment is largely facilitated by excessive moisture in greenhouses and sharp temperature drops during the day and at night.
Mosaic
On the young leaves of the squash attacked by this viral disease, white and yellow spots appear, which wrinkle after a while. Plant growth slows down significantly, they begin to bloom very poorly, and the forming fruits become variegated. Quite often, diseased squash fade. And you can face this scourge mainly in greenhouses.
Fusarium
Most often, this infection affects the squash growing in greenhouses. Moreover, in most cases, the manifestations of this disease can be seen not at all, but only on individual plants - fusarium often spreads by foci.
Peronosporosis
The main target for this misfortune is squash leaves. On their upper sides, chlorotic specks begin to form, slowly turning into oily and angular spots of light yellow color. Some time later, they turn brown, and the undersides of the leaves at the spots where the spots appear are covered with a dense gray-violet bloom.
Powdery mildew
When affected by this disease, a characteristic white or reddish bloom appears on the leaves (more precisely, on their upper parts) of the squash. Leaves attacked by powdery mildew often dry out prematurely. Slightly less often, this attack can affect the stems, and even less often it can be found on fruits. The best conditions for the development of a pathogenic fungus-causative agent of powdery mildew is created by excessive moisture.
Blackleg
The roots of the squash seedlings attacked by a harmful scourge begin to turn yellow as soon as they enter the phase of cotyledon leaves. The root collars of young plants gradually turn brown, and after a while you can notice characteristic constrictions on them. And the roots of tiny seedlings become rotten, darken and become very soft. As a result of the defeat of the black leg, a fairly large part of the growing seedlings quickly dies.
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