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2 Review (s)

  1. V. Nikitin, Sapinsky Island

    We have raspberries sick: the stems break in places of swellings and I dry up with berries. What to do?

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    • OOO "Sad"

      Inflations on the stems of raspberries, their fragility is a sure sign of defeat by cauline gall midges. In spring, with the arrival of stable heat from larvae, overwintered in stalks, flew insignificant insects with transparent wings and long legs. They live only a few days, but manage to lay eggs on the stems of raspberries, finding in them cracks. A week and a half hatching larvae penetrate into the stem and begin to feed there. Damaged plant tissues lose the ability to carry nutrients, shoots above the gall are drying up and often break off.

      How to deal with stem gall midges? When the pest is found, cut out the affected parts of the shoots to the undamaged tissue and burn them together with the larvae settling inside.
      How to reduce the number of pests? Gallitis more actively harms in overgrown raspberry plants, which are poorly ventilated, illuminated, excessively watered. The pest is more active than raspberry, infected with didymella - fungal disease,
      causing cracking of the stems. Knowing all this, you need to take care that the raspberries are not thickened, well lit, ventilated. It is very important to soil loosely after irrigation, and even better - to wallow. Regularly inspect the raspberry shoots and remove the infected pest, cutting them below the galls. If the shoots do not dry out, the pruning can be removed: harvest and then remove. Until the spring to leave the affected shoots should not be: a little late, and the galls ready for the continuation of the genus will fly out of the Gauls.

      Apparently, you have a gall midges struck remontant raspberries. Such raspberry at the end of the season is cut out completely, shoots are burned. Next year, the harvest will be on the current year's shoots.
      In the summer they cut out the fruitless shoots of a non-montant raspberry.
      Raspberry does not want to be sprayed with chemicals, and the effect of the treatments is uncertain: the moment when mosquitoes appear, the larvae are difficult to catch, and the larvae developing in the stems are not invulnerable at all. You can treat the raspberry several times with odorous infusions of insecticidal plants (for example, onions) to bloom several times to scare mosquitoes of gall midges. With the same purpose, next to raspberries, parsley, dill, onions are planted, mulch the soil with herb wormwood or other fragrant herbs.
      Early spring raspberry is desirable to process a one-percent Bordeaux liquid - for the prevention of didymella.

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