Dr. Rikhab Raj BhansaliCentral Arid Zone Research InstituteJodhpur, Rajasthan, IndiaEmail: rikhab51@gmail.com
Host: Ziziphus mauritiana Lam (jujube, or ber)Disease name: Powdery mildew of jujubePathogen name: Oidium ziziphi (J. M. Yen & Chin C. Wang) U. Braun (= Oidium erysiphoides f. sp. ziziphi Yan & Wang)
Powdery mildew of jujube.
Jujube, or ber, is an ancient and poor man’s fruit crop grown in semiarid and arid regions of India and a few other countries. Powdery mildew of jujube is a major disease, causing great losses in quantity and quality of fruits. Young, developing leaves and fruits are usually covered with a whitish powdery mass. The disease causes premature defoliation and heavy fruit-drop. Affected fruits remain small and become cankered and disfigured.
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