biosanitation to reduce apple scab, needle cast

Meindert de Jong tpejong at
Fri May 16 05:14:28 EST 2003

GreMy proposition is that biosanitation, an understorey in apple orchards, 
an undergrowth in pine forests can reduce apple scab, pine needle cast, 
respectively. It is explained in 
Please send feedback to meindert.dejong at Thank you.

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