WHO TO CALL:

Cornmunity Editar Home and Garden Editor

Andrew McCredie

985-2131 (147)

Layne Christensen

985-2131 (118)

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Give cherries a regular checkup

Roy Jonsso

sd sow it grows i A nents

OR THE last few months the ornamental cherry trees have put on

a spectacular display.

The vast majority of these frees originated in Japan. They have been extensively planted as street trees or in parks and private gardens here in the Lower Mainland.

Unfortunately, many of these dis- play trees are now in trouble as a result of disease and poor siainte- nance. Hf you hive an ornamental cherry tree, it would be a good ides to give the ree a regular checkup.

Cherries suffer froma number of diseases. The most common is a bacterial blight or canker (Pserdamonas syringae), This iniee- tious disease thrives in our cool, damp climate and spreads most readily during spring and fall.

just prior to bud burst in the spring.

‘Trees that hase been infected: will show the followiig ss mptonis; © buds fail te open in the spring Citlst, sparse: Lobe aad bite branche Gps: terminal growth wills adhe warm weather and qiatiite leaves uias develop brown spots. Phe brows spots will fatter and feaye shot holes tr the leat:

@ swollen cunkers develop on the bark allowing sap ta caze out: @ whole branches die back.

The hast two symptoms are typi- cal of an advanced vise.

To contal this bacterial disease, cutout any dead on infested: woud. Pruning should be dene during dry weather lo minimize the opportunity fer the bacteria to enter through freshty cut wood, .

Pruning tools should be disinfect- ed with a bleach or alcohol safution alter use onan infected tree.

Yo combat existing and prevent new cases Of blight. you should spray your flowering cherries with fixed copper four or five times per year: jast before the fall rains start. during the period of ted’ fal,

and while leaves are developing (once or Wwice}.

Use five prams of product per litre of water for fall or dormant sprays and (wo grams per litte of water duritig the growing scasan. (Copper Bas a very low mammalian |

See Trees page 12

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Friday, June 2, 1995 ~ North Shore News - 14

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NEWS phato Terry Peters

CHERRY TREES suffer from a number of diseases including a bacterial blight or canker. One of the symptoms is brown spots that will shatter and leave shot holes in the leaf. As you make your rounds in the garden, check ail your trees to see if they are in good health.