young foliage host:www.caf.wvu.edu

Listing 1 - 5 from 5 for young foliage

Fruit Insect Focus, July, 1997
... in the prepink stage; hatch continues throughout the bloom period. Larvae immediately move to the young foliage and begin to feed. Before the mites transform to each succeeding stage, they go through ... appear to increase faster and to higher densities on 'Delicious' and 'York'. A characteristic brown foliage, starting as a subtle cast to the green leaf, but becoming bronze in severe cases ...
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Fruit Pathology - Powdery Mildew
... by temperature than by relative humidity. Abundant sporulation from overwintering shoots and secondary lesions on young foliage leads to a rapid buildup of inoculum. Secondary infection cycles may continue until susceptible tissue ...
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Fruit Pathology - Disease Diagnostic Key
... fruit. Fungus may appear on twigs of susceptible cultivars. POWDERY MILDEW (Podosphaera leucotricha). 16b. Foliage associated with a major branch or occasionally entire tree becomes silvery in appearance. SILVER ... the leaves shot-holed" or tattered. NECROTIC RING SPOT . 11a. White powdery areas on young peach or nectarine fruit. Hard, leathery dark lesions on older fruits. POWDERY MILDEW ( ...
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Fruit Disease Focus - Phytophthora Root, Crown and Collar Rots  - June, 1998
... and locations, but include poor growth with sparse off-color foliage (Fig. 2), wilt, and collapse (Fig. 3). Infected trees may ... -declining apple trees often show abnormal or premature coloration of the foliage in early autumn (Fig. 4). In other cases, previously-healthy ... -girdled trees, by the premature coloring of their leaves. Typically, young trees between 3 and 10 years of age show the highest ...
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Fruit Disease Focus - April, 1998 - Apple Scab
... leaf ages, the tissues adjacent to the lesion thicken, and the leaf surface becomes deformed. Young leaves may become curled, dwarfed, and distorted when infections are numerous. The lesions may ... autumn to chop litter can help reduce numbers of pseudothecia. Applications of 5% urea to foliage in autumn can hasten leaf decomposition, thus reducing formation of pseudothecia. Applications should be ...
www.caf.wvu.edu