Gray rot on strawberries – a fungal infection of berries and
whole plant. Confuse this disease with others
is impossible.
Its external manifestations are fully consistent with the name – berries
covered with a gray layer of “fluffy” mycelium, rot, spread
around him gray clouds of spore that continue to infect everything
around.
Over the years, depending on the weather, gray mold
can exterminate from 50 to 90% of the harvest of berries. Defeat such an enemy once
и навсегда is impossible. The causative agents of the disease live in the soil,
plant residues do not die when frozen in winter and
drying out in summer.
But this is not a reason to give up, because gray mold threatens
a variety of vegetables, berries, even rose bushes. Methods of dealing with the disease
the same for all cultures, they will help to keep the garden and the garden
healthy and fruitful.
Contents
Variety selection
Absolutely gray-rot resistant varieties of strawberry
not. Year by year, in different weather conditions incidence
varieties varies. Early maturing varieties should be selected – quickly
ripe berries do not have time to “stale” and get sick. But among them
there are varieties with tender pulp, which is easily affected by the fungus.
The varieties proved to be the most resistant to gray rot: Mitsa
Schindler, Pavlovskaya beauty, Novelty, Friendship, Pocahontas,
Ruby pendant.
Strawberry rot, causes of disease
Fungal spores are always present in the soil and in the air, but
grow uncontrollably and harm the landings they can only
under certain conditions:
• Failed selection of landing site. Strawberries need a lot
sun, even a penumbra does not suit her. Plot reserved for
strawberries should not only be well lit, but also excellent
be aired. When air stagnates (between buildings, fences, in
lowlands) the development of gray mold on strawberries – a matter of time.
• Thickness of beds. Strawberry forms bushes of various
diameter depending on the grade and care. Standard landing pattern
may not fit. If the bed under the bushes forms dense
the shadow, the earth is not warmed by the sun, not blown by the air.
Strawberries should be planted, thinned out, which will provide air access and
Sveta.
• High humidity. The fungus loves moisture and develops quickly.
in the beds, filled with rain or unlimited watering. Worth
closely monitor soil moisture, if possible
cover strawberries from untimely rains, loosen the soil.
These are the main causes of rot on strawberries. Methods of struggle
at different stages of plant development, consider below.
how не допустить появления серой гнили на клубнике
Spores of gray mold overwinter in soil and plant residues on
surface. Especially dangerous is last year’s mulch and dry leaves,
in the spring they should be removed.
Fertilizers (both organic and mineral) used for
strawberries, serve as a good prevention of fungus. Are valid
they are twofold:
1. Disinfect the soil.
2. Strengthen the plants themselves.
Strong bushes are less sick and are affected by pests.
Potash and phosphate fertilizers timely introduced into the soil
significantly reduce the risk of fungal infections.
In areas particularly prone to illness, from spring
nitrogen fertilizer (including manure) should be discarded. Nitrogen serves
a nutrient medium for the fungus, contributes to its development. Besides
In addition, bushes thriving on nitrogen are shading themselves, worse
are ventilated.
After any watering or dressing, the earth is required
loosen.
Experienced gardeners are advised to plant onions between strawberry bushes
or garlic, their natural phytoncides inhibit the development of rot and
deter pests.
In the phase of budding, just before the flowering strawberries are sprayed.
compounds from gray rot.
Chemical and organic growth inhibitors
fungus:
• Mustard infusion. A glass of mustard powder add to bucket with
hot water, to insist at least a day. Also use infusion
garlic. To do this, one glass of chopped garlic cloves add
to 10 liters of hot water.
• Chloride of copper is diluted with water in accordance with the instructions
on the packaging of the drug. For better adhesion with leaves add
some skimmed milk.
• Organic fungicides figon, fuklazin and thiram (TMTD). The best
results in the fight against gray mold on strawberries showed drug
thiram The incidence in the experimental plots decreased by 3 times.
Processing can be repeated already on the ovaries. All listed
drugs act on strawberries as a fertilizer, heal bushes,
markedly increase the yield.
Attention! Improper watering contributes
appearance of rot on strawberries. The cause of the outbreak can
become cold water or sprinkling after flowering begins. After
the appearance of flowers should be watered only soil.
Before the appearance of the berries should take care that when ripe
they did not touch the ground. Mulching with fresh straw,
pine needles, at the same time keeps the soil loose and
protects berries from infection with fungal spores.
After сбора урожая удобряют beds with strawberries full
mineral fertilizer (with nitrogen) or rotted manure. Fresh
manure provokes the growth of fungus, its use on strawberry beds
not desirable.
At the end of the summer, some more preventive
spray antifungal formulations.
Compliance with such agrotechnology for one year gives a noticeable
The result – the incidence is reduced. In a few seasons
cases of occurrence of gray rot become isolated.
Mulching agrofibre prevents strawberry rot
Methods of struggle с гнилью во многом упрощаются при выращивании
garden strawberries on agrofibre. The structure of the black covering
material allows the soil to breathe, quickly absorbs moisture. Berries
after the rain dry quickly, do not touch the soil that
excludes their infection with fungal spores.
Black mulching materials accelerate the ripening of the crop.
Berries не успевают заболеть даже в дождливую погоду.
Black film prevents air from entering
recommended as a mulch for bedding.
Gray rot on strawberries, how to treat if it is already
appeared
how справиться с бедой, если для профилактики уже нет
of time, and the first diseased berries are noticed on the beds?
1. Diseased berries are carefully removed from the bushes, dropped in
away from the beds. Do not throw contaminated parts of plants on
compost pile.
2. If the bushes are too thick, cut off the excess leaves,
Opportunities thin landing.
3. Pollution with ash often gives good results. When loosening
It is advisable to put some ash in the soil under each bush.
4. Stop watering, let the topsoil dry and
to air out
5. Conduct foliar feeding with potassium permanganate and boric acid.
(2 g) with the addition of 20 drops of pharmacy iodine for every 10 liters
water. When spraying, try to get on the bottom surface
leaves.
Важно следить, чтобы ягоды не касались
land. You can use any stand, frame to support
peduncles, mulching, garter bushes.
The main rule of the fight against fungal infections
– create conditions in which rot does not develop, but
strawberry bushes are getting stronger. The sun and the air are the primary helpers in
anti-rotting berries.
Do not put up with gray mold on strawberries. how лечить и что
do for prevention you are now aware. And excellent harvest –
a matter of caring hands and patience.