Through genetic improvement Pinus radita D. Don, a sometimes windswept tree growing in small areas of the Monterey Bay and Cambria areas of California (USA) has become a highly significant plantation species in southern Australia (New Zealand and Chile). Other members of the pinus genus have followed into areas not suited to P.radiata. During the period of P. radiata plantation development in Australia, management of most natural eucalypt stands continued on a much less intensive scale. In sereval overseas countries parallel scenarios were in place with members of the eucalypt genus. However, with naural good form and vigour their initial planting stock was genetically ahead.