Warning to olive producers about ring spot disease and olive cotton louse

The Agriculture Department of the Ministry of Agriculture and Natural Resources called on olive producers to check for signs of Olive Ring Spot disease and Olive Cotton Lice pest.

The Department of Agriculture stated that in case of symptoms of this disease and pest, spraying should be done with one of the fungicides and insecticides recommended by the Department of Agriculture.

In the statement made by the Department, it was announced that the recommended drugs and their doses can be found on the website of the Department of Agriculture.

In the statement, the following information was given about Olive Cotton lice and Ringed Spot Disease in olives:

– Olive Cotton Lice and spraying time

“The larvae of the olive cotton louse are harmful by absorbing the sap of the plant on the bud stems and shoot tips of the olive pods, causing weakening of the trees and shoots, and shedding of flowers and flower buds.

Cotton lice in olives can be harmful during the flowering period of the olive in damp and unpruned olive groves, where the spring months are rainy. If a pesticide has been applied against the olive moth flower generation, which is harmful in the same period, there is no need for a separate spraying targeting this pest. In the orchards where spraying is not done against the olive moth, only the heavily damaged nutmeg of the trees should be sprayed. In this way, natural enemies will be prevented from being damaged too much and the natural balance in the garden will be preserved as they will feed on the pests in the stems. If spraying is absolutely necessary, the most appropriate control time for olive cotton lice is the period from the time of flowering, starting 10 days after the first cottony to the shoot tips. The drugs and doses recommended by the Department are used against this pest.

– Ringed Spot Disease in olives and spraying time

The first symptoms are blackish-gray circular spots on the upper surfaces of the leaves in spring. Where these spots are located, the color becomes lighter, then a normal leaf-colored ring forms around it. It turns this into a second light colored ring from the outside. Then a dark circle forms again. In the epidemic years of the disease, the stained leaves begin to fall as of May, and the trees become bare by shedding all the leaves. This situation causes less fruit set and early shedding of fruit. In trees weakened by disease; shoots and thin branches may dry out. The disease is encountered every year in irrigated, moist and heavy soils and in olive groves close to the sea. Especially rainy and cool years in spring are suitable for the disease to cause an epidemic. Drugs and doses recommended by the Department are used against this disease.

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1. Spraying: After harvest,
2. Spraying: Just before the spring shoots appear,
3. Spraying: It should be done after the flower stalks become evident, before the flowers bloom.

– “The application should be done before the flower or after the flowers fall”

In the statement, some warnings about spraying were made and it was noted that spraying should be done before flowering or after the olive blossoms fall, since spraying is not recommended during the flowering period.

In addition, the statement reminded that if there are bee hives nearby, the owners of the hives should be informed before spraying, and it was stated that the “Safe and Effective Use of Agricultural Pesticides” should be carefully observed while spraying.

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