Disinfection of seedlings

The most dangerous pests of wild strawberries - strawberry mites, strawberry and stem nematodes, spread mainly with seedlings. A radical way to combat these pests is thermal therapy( treatment of plants in hot water).Treatment modes are as follows: against the strawberry tick seedlings should be placed in water with a temperature of 45-46 ° C for 13-15 minutes;against strawberry nematode - with a temperature of 46-47 ° C for 15 minutes;and a stiffer nematode requires a more stringent regime - 47-48 ° C for 15-20 minutes.

Warming plants should not be when they grow, but at rest. For this, you can do two things: harvest the seedlings late in autumn, keep it in winter at a temperature of 0-2 ° C, and in the spring before it grows, grow in water under the desired regime. Or( second option) to harvest, i.e.dig out the seedlings early in the spring, too, at rest and immediately warm up. In these cases, plant waste after thermotherapy will be less.

As a heating bath, you can use any large pot or bucket at home by placing it on any heating source( oven, electric or gas stove).To monitor the water temperature, it is better to take a mercury thermometer with a fission rate of 0.1-0.5 ° C.Allowable temperature fluctuations during warming ± 0,5 ° С.

Unusual advice from the .The accuracy of the temperature regime of heating the seedlings can be increased if a tank with running water of a given temperature is used.

Thermotherapy technology consists in washing seedlings with roots( if the plants are decontaminated from the stem nematode), warming up under the selected regime and immediately cooling at a temperature of 10-15 ° C for 15-20 min to relieve heat stress. In this case, the ratio of water to the number of plants should be 1: 2.

In the case of disinfection from strawberry mites and strawberry nematodes, seedlings need not be completely immersed in hot water - enough to warm the aerial part( horns and young leaves), and roots( even with a clod) leave outside. This will also increase the yield of survivors after thermotherapy plants. Such plants will serve as uterine.

Varieties of strawberries suitable for cultivation in the Non-Chernozem Zone of Russia

short-day	long-day( remontant)	Poluremontantnye
Strawberry Garden( grade zoned in 2004)	Zemklunika	Strawberry	Large fruited	small-fruited beardless
Berries on uterine plants	Berries further on his mustache
Early-maturing: Sorceress, Dawn, Kokinskaya early, Found, Early Maherauha, Junia Smides Medium-ripeness: Knight, Deserianka, Zenith, Beauty of Zagorje, Hope, Ruins pendant, Rusich, Sudarushka, Festival, Festival daisy, Fairy, Tsarskoselskaya, Generous Late-: Borovitskaya, Zeng Zengana, Cinderella, Redgontlit, Talisman	Diana, Strawberry, Hope Penelope, Raisa, Report, Candied Muscat candy	Shpanka, Milan	Arapaho, Bergerglou, Bordurella, Brighton, Mountain Everest, Geneva, Zephyr, Mahern, Ozark Beauty, Profyuzhen, Rabunda, Rapelli, Ed Rich, Sakhalinskaya, Svithart, Superfekshen, Tapirella	Kletterstar, Ostara, Tribyut, Tristar, Trupheme pro- UCDs, Humm Gent	Baron sol-dick, Bordurella-Maralla, Weiss sol-dick, Dolce Cuore, Rothe sol-dick, Rügen, San ​​Souci, Smolton, Syuprim	Zeng Zengana, Redgontlit, Surprise Gall, Talisman of the