How often the gardener observes in the spring the depressing picture: pleasing all last season coniferous suddenly in April-May turn yellow, grow brown and look lifeless. What should I do? How to save plants?
Seldom it happens that there is no fault of the summer resident in this case - as a rule, the plot owner has made mistakes for which plants pay.
Why coniferous turn yellow in the spring
Look at the list of such wrong actions and check points which correspond to your actions:
- When landing large amount (more than 30-50 g) of mineral fertilizers has been added to landing hole, and backs contacted to granules in the soil.
- After landing the regular watering of plants has not been provided during the season (""has put, has watered and has forgotten"").
- The subwinter vlagozaryadkovy watering, vital for coniferous plants (before approach of frosts) which would provide good turgor (filling with moisture) needles has not been carried out.
- Sufficient shadowing of needles for the winter has not been made. The fact is that in February or early in the spring the sun forces needles to evaporate moisture, and is not able to provide the roots which are in the frozen earth with this moisture. Plants just ""burn down"", without having opportunity to be protected from bright beams.
- Were not made in last season and spring of processing of plants from diseases and wreckers of needles.
What to undertake if plants have already turned yellow
If it is about small impregnations of yellow needles at the end of February beginning of March, then it is still quite possible to protect trees pritenochny materials.
You should not wrap up plants lutrasily (spunbond) completely at all. Material poorly detains the sun, the needles at the same time continue to evaporate actively moisture, and ""cocoon"" from lutrasil creates the greenhouse effect leading to perishing, burning out and, finally, to yellowing hvoinok inside. Often under lutrasily the plant turns yellow more, than not covered.
Effectively to protect separate plants from the sun, use the burlaps and special pritenochny grids allowing needles to avoid bright beams and allowing it to be aired.
By the way, absolutely you should not exclude use of lutrasil. It is possible to build fine screens which slightly pritenyat plants from it, but do not accumulate moisture.
The simplest option is to throw tree with fabric only from South side and to enshrine it in this provision by twine or normal office brackets directly on branches. The result - plant priteneno, but is well aired.
Have well proved ""fences"" from lutrasil which construct from South side of green coniferous hedges. In this case fabric is pulled on the columns vryty in soil since fall, and will organize protective ""wall"".
If the needles have turned yellow in April-May
Well, most often this phenomenon is quite reversible and reparable. You should not cut off branches with the turned yellow needles at once. At some plants on them can grow escapes with young hvoinka again (for example, at thuja).
Only in cases when knots have obviously dried up and easily break off with dry cut, it is necessary to cut accurately them hacksaw or to cut off secateurs.
So, than to help victims coniferous?
1. Process for prevention of plant mix of insecticide and fungicide since it is difficult to nonspecialist to define presence on plant of symptoms of diseases or wreckers.
For this purpose on 10 l of water add 4 ml of Topaz and 20 ml of Aktellik (if you do not find in sale Aktellik, it can be replaced with medicines Aktara or Fufanon). Surely add medicine Zircon ampoule to the same tank mix, it is excellent stimulator which will help to be restored to plants.
2. It is abundant water plants, especially if you assume that you have gone too far in mineral fertilizers when landing. After washing of the soil once again water coniferous, having added 1 ampoule of Zircon to water. In this case it is applied as kornestimulyator.
3. You do not bring any fertilizing at the roots, on needles, new escapes will not appear yet.
4. In the morning, in the evening or in cloudy days spray krone with normal water.
5. In week after the first processing spray plants with solution of medicines Epin-Ekstra (2 ml on 10 l of water). It is excellent antistress medicine which will help needles to be restored.
If you have very alkaline water (gives a lot of scum), then before Epin's cultivation add 1 tsp of vinegar to water bucket (the medicine Epin collapses at the alkaline environment). To spray in cloudy weather or in the morning-evening 2 times a month before complete recovery of plant.
6. Instead of Epin it is possible to use one more adaptogen - medicine NV-101, spray with this solution and water at the roots once a week. To use 2 times a month before complete recovery of tree.
7. As soon as the plant has cheered up and new escapes have appeared, in May it is possible to feed up it, using special fertilizers for coniferous. At the same time it is better to give preference to the liquid and granulated medicines with long validity period (POKON, AVA).
8. Regularly water and spray coniferous, especially young copies, and do not make mistakes before preparation them to wintering from now on.