Why do raspberry leaves turn red in June: reasons and what to do

People involved in the cultivation of raspberry bushes often experience reddening of the foliage. This problem is very dangerous, because it can dry out the plants. Therefore, it is necessary to figure out in advance why raspberry leaves turn red in June and what to do about it.

Causes of reddening of raspberry leaves

There are several reasons why bright red spots appear on the surface of the foliage.

Lack of phosphorus

Phosphorus is considered the main nutrient that is needed for the development of the raspberry bush. The lack of this component negatively affects the fruiting and flowering of seedlings.The first signs of phosphorus deficiency appear in the spring, when buds should appear on the stems of the bushes. In plants that lack phosphorus supplements, buds appear with a delay.

Also, phosphorus deficiency is evidenced by the fact that seedlings fall off flowers with buds.

Sheet plates are covered with dark spots with a red tint. Gradually, all the affected foliage is deformed and begins to dry. Only phosphorus-containing feed mixtures can save plants.

Fungal diseases

Another reason why raspberry leaves turn red and dry is the development of fungal diseases. Common diseases caused by fungus include:

• Anthracnose. A common pathology that affects not only raspberries, but also other horticultural crops. Symptoms of the disease appear on foliage, berries, buds and stems.In order to timely identify anthracnose, it is necessary to examine the sheets. Small dots of a reddish tint appear on them, the size of which gradually increases.
• Septoria. A disease that most often appears on raspberry bushes. First, the lower leaves are covered with red spots, but then the bush begins to dry.
• Verticillosis. This is a dangerous disease, due to which the yield is reduced by 2-3 times. Symptoms of verticillium include drying of the leaves and cracking of the stems.

Insect pests

The reasons for the development of red spotting include the attack of pests on seedlings. There are several insects that often appear on raspberry bushes:

• Gallitsa. This is a small yellowish mosquito that damages the foliage and stems of horticultural crops. Reddish dots form on damaged areas of plants. If the gall midge is not eliminated in time, it will damage more than 80% of shoots.
• Nutworker. When this pest damages the leaves, reddish swellings appear on their surface. Damaged foliage cracks and dries.
• Aphids. The most common pest that appears on all garden and horticultural crops. First, the aphid damages the inflorescences and young shoots. However, gradually the number of pests increases throughout the bush.

What to do to get rid of redness?

To get rid of red spots on the surface of the leaves, you must use the following tools:

• Inta-Vir. The tool is used if spotting has appeared due to pests. As part of "Inta-Vira" there are components that help to destroy pests in 2-3 sprayings. You can use the drug no more than twice a week.
• Fitoverm. A universal drug used to treat fungal diseases and eliminate insects. Shrubs are sprayed with Fitoverm three times a month.
• "Aktara". To get rid of insect pests, it is enough to treat the plant once with Aktara.

How to prevent the problem?

To ensure that redness never appears on the leaves, you need to familiarize yourself with how to prevent this problem. Raspberry bushes get sick less often if their roots are protected from mechanical damage. Also, to prevent the development of diseases, it is necessary to regularly feed the bushes with organic matter and mineral fertilizers. Top dressing is added 4-5 times per season.

In addition, the following preventive measures must be observed:

• regular spraying of raspberries with fungicides;
• replanting bushes to a new place every 5-7 years;
• Pruning periodically to remove weak or diseased shoots.

Conclusion

Gardeners growing raspberries in the garden sometimes experience reddening of the upper and lower leaves. To eliminate red spots, you need to familiarize yourself with the causes of their appearance and effective treatments.

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