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Fire blight, also written fireblight, is a contagious disease affecting apples, pears, and some other members of the family Rosaceae. It is a serious concern to apple and pear producers. It is a serious concern to apple and pear producers.
Mcmanus PS. 1994. Role of Wind-Driven Rain, Aerosols, and Contaminated Budwood in Incidence and Spatial Pattern of Fire Blight in an Apple Nursery. Plant Disease 78:1059. PuĊawska J, Sobiczewski P. 2011. Phenotypic and genetic diversity of Erwinia amylovora: the causal agent of fire blight. Trees 26:3–12.
While these blight-caused blockages cause the decline of an infected tree, the plant rarely dies. [1] Co-infection between citrus blight and citrus greening disease (HLB) is possible, and is so severe a health issue that trees infected by both diseases usually die. [3] The disease affects trees of all ages and types, including seedlings and ...
The disease can affect every part of the tree, from the fruit to the trunk. [14] Infected trees may die within months or can linger for years with severely reduced yields. In addition to the scorched appearance of the plant parts that gives the disease its name, plant tissues infected with the bacteria will exude milky or reddish-brown ooze.
A loquat leaf, shown at a high magnification, illustrating the general appearance of the leaf and the structure of the venation. E. japonica is a large, evergreen shrub or small tree, with a rounded crown, short trunk, and woolly new twigs. The tree can grow to 5–10 metres (16–33 feet) tall but is often smaller, about 3–4 m (10–13 ft).
Although chemical control can be effective, cultural management is the most common method of control for this disease. Cultural management for Eastern Filbert Blight involves scouting orchards, pruning and removing cankers, and removing plant debris from the ground. Orchards should be scouted thoroughly twice per year to remove cankers.
The first description of boxwood blight was from the United Kingdom in the mid 1990s. [1] In 2002, when the disease was discovered in New Zealand, the cause was identified as a new species of fungus which was formally named Cylindrocladium pseudonaviculatum. [2] The fungus causing the disease in the UK was later named C. buxicola.
Phytophthora capsici is an oomycete plant pathogen that causes blight and fruit rot of peppers and other important commercial crops.It was first described by L. Leonian at the New Mexico State University Agricultural Experiment Station in Las Cruces in 1922 on a crop of chili peppers.
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