What causes Fireblight?

Table of Contents

Fire blight is caused by the bacterium Erwinia amylovora. This disease affects over 130 plant species in the Rosaceae family worldwide. In Minnesota, fire blight is most often seen on apple and crabapple (Malus spp.) and mountain ash (Sorbus spp.).

What is an example of a pome fruit?

Apples, pears, nashi and quince are pome fruits, grown from spring blossom and harvested from late summer through to late autumn.

What disease kills fruit trees?

These diseases include: bacterial canker, brown rot, coryneum blight and peach leaf curl. See individual fruit tree pages for descriptions.

How do you prevent fireblight?

Disease Management Avoid pruning when the plants are wet. Dip pruning tools in 70 percent isopropyl alcohol (rubbing alcohol) or 10 percent bleach solution (1 part bleach to 9 parts water solution) between each cut. Wash and oil shears when you are finished. These practices avoid spreading the pathogen.

What is bacterial blight disease?

Bacterial blight is a widespread soybean disease that is most common during cool, wet weather. This disease usually occurs at low levels that don’t result in yield loss. Bacterial blight can be mistaken for Septoria brown spot.

What are the types of pome?

Despite different textures and tastes, apples, pears, loquats, medlars, and quinces are all types of pome. The plants that bear pomes belong to the apple subtribe, called Malinae, of the rose family, Rosaceae.

Is pomegranate a pome fruit?

The pomegranate has a persistant calyx and endocarp reminiscent of a pome, and membranous partitions, juicy seed vesicles, and a leathery exocarp similar to a hesperidium. Spjut classifies the pomegranate as a “balusta.” Berry-like fruits, such as the avocado (Persea) and kiwi (Actinidia) are called a “bacca.”

What are the main types of diseases in fruit plants?

Fruit and vegetable diseases

Bacterial speck.
Clubroot.
Leaf spot diseases.
Damping-off.
Downy mildew.
Powdery mildew.
Tuber diseases.
White mould.

How do you treat fire blight on fruit trees?

Promptly destroy of all infected prunings by burning or burying. Disinfest all pruning tools between cuts using a 10% bleach solution (1 part household bleach to 9 parts water) or 70% alcohol. To reduce the spread of fire blight, pruning is best done during the dormant season.

How do you treat fire blight organically?

Early during bloom, his research has found that lime sulfur sprays used to thin flowers also suppress fire blight. After early lime sulfur sprays for thinning, make sure to apply Blossom Protect (Aureobasidium pullulans). Lime sulfur and Blossom Protect have a tricky dynamic.

What causes fire blight in pome fruit?

Cletus P. Kurtzman, in The Yeasts (Fifth Edition), 2011 Fire blight is a major concern in the production of pome fruit worldwide. The disease is most often associated with epiphytic populations of Erwinia amylovora that develop in blossoms.

What are the Gram-negative bacteria that cause plant diseases?

Among the bacterial diseases of plants, the most widespread and destructive losses are caused by the Gram-negative bacteria of the genus, Erwinia, Pseudomonas, and Xanthomonas. The genus X anthomonas is of great economic importance because of its broad host range.

What are pome and stone fruit crops?

Pome and stone fruit crops include those perennial, woody, fruit species that are usually grown in areas experiencing temperate climatic conditions. However, it should be noted that these species are increasingly grown in areas at lower latitudes with much hotter climatic conditions.

Is genetic transformation of POME and stone fruits possible?

Unfortunately, genetic transformation of pome and stone fruits is still limited to few commercial genotypes. Research carried out and the new emerging biotechnological approaches to obtain fruit tree plants resistant or tolerant to viruses are discussed.