A set of measures to protect strawberries from pests and diseases.
In household plots, it is necessary to use a very small amount of chemicals. For a certain group of pests, for example, ticks, nematodes, they are practically absent, and therefore, to obtain high berry yields, it is necessary to create favorable conditions for development so that the plant itself can withstand damage by pests and damage to diseases. It must be remembered that it is much easier to bring to the site, together with seedlings of strawberry tick, strawberry and stem nematode, the causative agent of verticillum wilting, than to get rid of them.
© J. Chris Vaughan
Early spring period.
Immediately after the snow has melted and the soil has completely dried, it is necessary to carefully clear the beds from plant debris, in which pests and pathogens can winter. Burn or punch collected leaves and other debris.
After raking leaves, but before the beginning of the growing season of wild strawberries, with a strong damage to plants by diseases last year, it is necessary to spray the plantings with a 3% Bordeaux liquid.
© Will Merydith
The spring period (the beginning of the growth of leaves - the extension of peduncles).
At the beginning of leaf growth, spray plantings with 1% Bordeaux fluid with the addition of 1% colloidal sulfur, or 0.5% sulfur. During this period, special attention should be paid to identifying strawberry-raspberry weevil. With its massive quantity and a great threat of a sharp decrease in the yield, one of the pyrethroid preparations should be sprayed with anorethrin, permethrin, rovikurt, kilzar. It is better to carry it out during the period of active nutrition of beetles on young leaves. In no case should this spray be allowed to be carried out at the time when the beetles have switched to eating buds, since at that time the beetles already have time to damage 10-20% of the buds. Spring spraying against strawberry-raspberry weevil is not the best, but given that this spraying will destroy the strawberry leafworm caterpillars, larvae and adult insects of the penicillaria, it is still advisable to carry it out.
© Adrian Nier
Late period (from the beginning of the isolation of buds to flowering).
To combat spotting, powdery mildew and gray rot, spray with 1% Bordeaux liquid with the addition of sulfur. To increase the resistance of plants against diseases and strawberry ticks, it is necessary to introduce mineral fertilizers in the form of top dressing. Collect and destroy all damaged buds of strawberry-raspberry weevil. With prolonged rains in the aisles of strawberries lay a section of wheat straw or pine needles in order to reduce damage to the berries with gray rot.
Summer period (immediately after flowering until the end of the berry harvest).
During the appearance of slugs and millipedes in the evening, baits in the form of rags, burdock leaves, and plates are laid out in areas in the evening. In the morning, snails and millipedes are collected under baits and destroyed. At this time, sawfly larvae and leaf beetle beetles may appear on the plantations. With a small amount, they can be collected (especially beetles). To deal with sawfly larvae with a very large number of them, a lepidocide should be sprayed. Collect and destroy berries affected by gray rot in order to prevent the spread of the disease. Detect and destroy plants inhabited by nematodes. Observe the appearance of beetles of strawberry-raspberry weevil.
Late summer and autumn periods (after harvesting).
Immediately after harvesting, spraying against strawberry-raspberry weevil and strawberry tick karbofos is carried out. Given the peculiarities of the development of both pests, a working solution of insectoacaricide must be introduced in the middle of the line (at the base of the bushes) where these pests are located at this time. To combat diseases, it is better to spray 1% Bordeaux liquid with the addition of sulfur during this period. Against slugs, metaldehyde is used at a rate of 4 g per 10 m2 or pollinated late in the evening with fluffy lime (25 g per 10 m2), or superphosphate (30-40 g per 10 m2). The best effectiveness of these drugs will be when you repeat the treatment after a couple of days.
With a strong infection of the plantations with spotting, ticks, powdery mildew and the presence of large weeds, mowing of leaves is allowed with their subsequent composting. However, it should be remembered that this technique does not completely solve the problem of protecting plantings from pests, and can even reduce the yield of plantings if it is not implemented timely.
© Debs (ò‿ó) ♪
Before planting strawberries on larvae of grasshoppers and grasshoppers (more than two larvae of May beetles and five larvae of grasshoppers), the soil must be improved. 30 days before planting, seedlings add ammonia water to the grooves at the rate of 20 l per 100 m2. Immediately after making the grooves, they wrap and cover the soil with a film for 18-20 days until the pest larvae die.
To combat nematodes, those in the soil use thiosan, it is also applied 30 days before planting at the rate of 1.0-1.5 kg per 10 m2.