Date post: | 14-Apr-2017 |
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Education |
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Tangerine Diseases A
Lecture To ToT trainees ( FFS) By
Mr. Allah Dad Khan Provincial Coordinator IPM
KPK MINFAL Pakistan
Citrus Canker • Citrus canker is a serious bacterial disease of citrus trees including grapefruit,
lemons, limes and oranges. It reduces the growth of new fruit and spoils healthy fruit. Outbreaks of this disease have been eradicated from Queensland and the Northern Territory at great cost to industry and growers.
• The disease attacks the leaves, twigs and fruit of citrus trees. It causes the leaves to drop and fruit to fall to the ground before it ripens. People may also contribute to disease spread by moving infected plants or plant parts
Citrus greening
Identification tip: • Mottling and yellowing that
cross leaf veins help to distinguish citrus greening (Huanglongbing), an exotic tree-killing bacterium. When zinc deficiency is the cause, discoloring occurs between distinctly greener veins. Report to agricultural officials any finding citrus greening disease
Phytophthora gummosis
Identification tip• :Phytophthora gummosis is
the most common cause of profuse dark exudate from bark. Several other limb, trunk, and root diseases cause oozing bark and can stunt and sometimes kill trees.