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Organic Rose GrowingRose Propagation & ExchangeRoses
ambloved

When did different breeders stop spraying their rose test fields?

4 years ago

It is easier to pick disease resistant roses if I know when the rose test fields were stopped being sprayed. I know Kordes stopped spraying their rose test fields in mid 1980's and has disease resistant roses. David Austin stopped, when? Lim Ping never sprayed his test roses and they are disease resistant. Harkness? Who else and when?


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