Fruit Rot


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Fruit Rot

 

a disease of fruit trees, caused by parasitic Fungi Imperfecti of the genus Monilla and characterized primarily by the rotting, wrinkling, and desiccation of the fruits. In the USSR it is most widespread among drupe and small-seeded crops. Fruit rot of drupe crops (causative agent Monilia cinerea) is one of the most harmful diseases of apricots, peaches, plums, mazzard cherries, cherries, and cherry plums. Fruit rot of crops with small seeds is less damaging than that of drupe crops. Fruit rot of apple and pear trees is caused by the fungus M. fructigena (some apples in the Far East are parasitized by M. malt); fruit rot of quince is caused by M. cydonia.

The causative agents of fruit rot penetrate the plant primarily when there are mechanical injuries; they develop inside the tissues and winter in the organs of the trees. With the onset of warm, humid weather, the spores are carried to healthy trees by the wind, raindrops, and insects (mainly by fruit moths and snout beetles). Severe affection of fruits is fostered by dense plantings, dense tree crowns, planting orchards in lowlands, and cool, moist weather during blossoming.

Control measures include planting orchards on well-ventilated plots, gathering and packing fruits without mechanical injury, gathering and destroying diseased fruits, pruning and destroying diseased branches in the autumn or spring, turning over the soil around the trunks, and spraying trees with fungicides.

M. V. GORLENKO

References in periodicals archive ?
This injudicious use of fungicides is provoked by high percent of the produce being lost to a variety of causes with fruit rot accounting for the majority of tomato fruit losses [3].
With food prices soaring and more and more people turning to foodbanks, it makes sense to use what is there, rather than letting fruit rot on the ground.
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PJ O'Rourke noted: "If you let fruit rot, it turns into wine, something brussels sprouts never do.
Edinburgh Sheriff Court was told Miller, who ran Because I Like It Raw, in the city's Queen Street, let fruit rot and failed to clean debris and mould.
Compared to field-produced raspberries, greenhouse berries are larger, firmer and less prone to fruit rot.
When growing tomatoes, the best way to prevent fruit rot and damage from slugs and nibbling insects is to support plants off the ground with cages, trellises, or stakes.
To address fruit rot, look for grey mold, which is severe during prolonged rainy and cloudy periods.
Fruit2day Survey Reveals Why: Nearly Half of Americans Let Fruit Rot in the Fridge Instead of Eating It