Content tagged "rootstock"

Parts of an Apple Tree

Apples Updated: September 21, 2011

When discussing apple rootstocks and cultivars, understanding the terminology used to describe the tree is important.  All apple trees purchased from...

Apple Root Suckers

Apples Updated: September 19, 2011

Root suckers are apple tree sprouts that emerge from the rootstock. They grow around the base of the tree. The point of origin of the suckers is the root....

Effect of Wind on Apple Trees

Apples Updated: September 16, 2011

Strong wind, especially wind associated with tropical storms that saturate the soil, can cause fruit trees to lean and sometimes be totally uprooted. Due to...

Why are rootstocks used for apple trees?

Apples Updated: August 31, 2011

Apples do not come true from seed, so when we plant apple seeds, the plants that result are not the cultivar that we obtained the seeds from. If we take six...

What are burr knots?

Apples Updated: August 31, 2011

Burr knots are root initials that develop above ground. Rootstocks are selected for their ability to produce roots, but some rootstocks try to produce roots...

U.S. Fruit Tree Nurseries

Apples Updated: August 29, 2011

Adams County Nursery Inc., 26 Nursery Rd., P.O. Box 108, Aspers, PA 17304 Nursery, 15935 S. Temperance Ave., Selma, CA...

I want to espalier an apple tree along a garage wall. What rootstock should I use?

Apples Updated: August 28, 2011

Espalier is a technique of pruning and training apples in two dimensions, usually against a flat surface such as a wall or fence. The rootstock that you...

How do rootstocks affect apple fruit size?

Apples Updated: August 28, 2011

Results from a number of apple rootstock trials in different regions of North America indicate that some rootstocks can influence fruit size. Trees on M.7,...

What do apple rootstock leaves look like?

Apples Updated: August 27, 2011

A general description of rootstock leaf characteristics does not exist, because each rootstock has leaves that are characteristic of that particular...

Do I have to stake all trees on all rootstocks?

Apples Updated: August 27, 2011

No, you do not have to stake all trees. Generally, since we do not have commercialized dwarfing rootstocks for most stone fruits, these trees do not need to...

Which rootstocks are winter hardy?

Apples Updated: August 27, 2011

Rootstocks can affect the development of cold hardiness in apple trees, but this is a complex trait, and it may depend on what time of the winter with which...

Why do nurseries use budding versus grafting?

Apples Updated: August 22, 2011

Budding is often used because a single scion bud is inserted into the rootstock to produce a new tree. Also, with budding, many trees can be produced from a...

How should I choose among dwarfing rootstocks for my apple orchard?

Apples Updated: August 22, 2011

Choosing the best dwarfing rootstock for your orchard will depend on multiple factors. Probably one of the most important is the cultivar that will be...

How do I determine the spacing between trees on a given rootstock for my apple orchard?

Apples Updated: August 22, 2011

Determining the correct spacing for a rootstock/variety combination in a particular orchard is worth a lot of pre-planting thought and effort. Trees that are...

Which apple rootstocks are susceptible to fire blight?

Apples Updated: August 22, 2011

Consider the relative susceptibilities of the scion and rootstock to fire blight when establishing new orchards. There is considerable variation among apple...

Are there restrictions to grafting my own apple trees?

Apples Updated: August 22, 2011

Some cultivars of apple are under patent. If the patent is still applicable, then you must contact the nursery (or whoever holds the patent) and pay the...

Can I grow apple trees in my windbreak?

Apples Updated: August 22, 2011

The primary function of a windbreak is to reduce wind speed around areas in need of protection. If you are interested in having multiple species in your...

International Fruit Tree Nurseries

Apples Updated: August 22, 2011

D&L Nursery, 75 Avenue Joxe, 49100 Angers, FranceJanssen Brothers Nurseries Limited, PO Box 2711 6030 aa Nederweert, HollandJos Morren Nurseries, Bosstraat...

U.S. Fruit Tree Rootstock Nurseries

Apples Updated: August 22, 2011

Brandt’s Fruit Trees, Inc., PO Box B, Parker, WA 98951 http://www.brandtsfruittrees.comBurchell Nursery, Inc., 4201 McHenry Ave., Modesto, CA 95356...

What is black root rot (dead man’s fingers), and how do I identify and manage the disease?

Apples Updated: August 21, 2011

Black root rot, also called dead man's fingers or Xylaria root rot, is occasionally observed on mature apple and cherry trees. Although trees of all ages can...

How do I identify and manage Armillaria root rot, or shoestring rot, in apple?

Apples Updated: August 21, 2011

Armillaria root rot, also known as shoestring root rot, is a soilborne disease that can affect several fruit crops, but it is most common in the eastern...

What is a dwarfing rootstock?

Apples Updated: August 21, 2011

Apple seeds that are planted do not produce a replica of the type of fruit that was planted; therefore, trees must be propagated by vegetative means such as...

How do nurseries grow rootstocks?

Apples Updated: August 21, 2011

Rootstocks are commonly propagated by layering to form large stool beds. The "mother plant" is set out in the field. The plant may either be mounded, or it...

What is white root rot in apple trees?

Apples Updated: August 21, 2011

White root rot, caused by the fungus Scytinostroma galactinum (formerly Corticium galactinum), has been known as a parasite of apple trees for many years and...

Will an apple tree grow differently if I plant the graft union high above the soil or close to the ground?

Apples Updated: August 21, 2011

The planting depth is critical, especially for trees on dwarf or semi-dwarf rootstocks. When planting, dig the hole deep enough to allow the tree to be...

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.