Fireblight of apple and pear.
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Fireblight of apple and pear.

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Published by MAFF, ADAS in Alnwick .
Written in English


  • Apple -- Diseases and pests.,
  • Pear -- Diseases and pests.

Book details:

Edition Notes

SeriesLeaflet / AgriculturalDevelopment and Advisory Service -- 571, Leaflet (Agricultural Development and Advisory Service) -- 571.
The Physical Object
Pagination12p. :
Number of Pages12
ID Numbers
Open LibraryOL20248372M

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Fire blight is a common and very destructive bacterial disease of apples and pears (Figure 1). The disease is caused by the bacterium Erwinia amylovora, which can infect and cause severe damage to many plants in the rose (Rosaceae) family (Table 1). Apple (Malus spp.)-Fire Blight Cause Erwinia amylovora, a bacterium that overwinters in cankers on infected pear, apple, and some ornamental trees. Risk of infection increases with the number of more active "holdover" cankers in an orchard. Insects, pruning tools, and splashing rains spread this bacterium. : Compendium of Apple and Pear Diseases (Disease Compendium Series) (): A. L. Jones, H. S. Aldwinckle: Books3/5(1). Apple and Pear Disease - Fire Blight, Dormant Removal of Cankers When it comes to managing fire blight, the first line of defense is good sanitation, which is removing the overwintering source for the bacteria: cankers. Save For Later Print.

Fire blight is a destructive bacterial disease of apple, pear and other related species such as hawthorn, quince and mountain ash. It causes severe blighting of blossoms, shoots, limbs and fruit. Outbreaks of fire blight occur periodically in British Columbia pear and apple orchards. APPLE AND PEAR TREES WITH RESISTANCE TO FIREBLIGHT No apple or pear trees are fully resistant to this bacteria but some varieties do show some resistance. PEAR TREES RESISTANT TO FIREBLIGHT There are no pear tree varieties available in the UK which are totally resistant to fireblight. Concorde does show some resistance however. Varieties normally grown outside the UK which are resistant to fireblight . Fire blight affects a lot of plants in the rose family (Rosaeae) which, as you probably guessed, includes roses. The rose family also includes the genera Pyrus (pears) and Prunus. Within the genus Prunus are apples, peaches, cherries, plums, raspberries, and . Albert Molive and the Fireblight Diamonds (The Mishaps of Mullingus Mullins Book 1) by Archduke Elbowtross Kindle $ $ 0. Free with Kindle Unlimited membership. Or $ to buy Fire blight of apple, pear and woody ornamentals (NebGuide) by John E Watkins.

Fire blight is a highly destructive disease of apple and pear that can occur in commercial orchards and home plantings. Many landscape trees and shrubs in the rose family are also susceptible to this disease (Table 1). Fire blight can cause severe damage (Figure 1) in a very short period of time. Because precise conditions are needed. The "Cougarblight" model was developed for fire blight of pear and apple in Washington state. It uses temperature data to estimate the growth rate of fire blight bacteria (Erwinia amylovora) over the past three days plus the present day, if wetting occurs in the afternoon of evening, or the previous four days if wetting occurs in the morning. 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. Under optimal conditions, it can destroy an entire orchard in a single growing season. The causal pathogen is Erwinia amylovora, a Gram-negative bacterium in the order Enterobacterales. Class: Gammaproteobacteria. Fire blight is a destructive bacterial disease of apples, crab apples and pear trees, as well as other related plants such as cotoneaster shrubs and mountain ash. Warm rainy springs and open wounds allow rapid spread of the disease. Fire blight is most severe before and during bloom when spring temperatures are warmer than average.