we live in israel. the climate is hot and dry with no rain during the 4 summer months.altho the rose bushes grow to huge sizes,there are other problems. these include:a unbelieveable amount of fungal infection especially powdery mildew,lack of bud production during the summer and loss of fragrance during the summer.the rose books we have stress the north american or northern european climate.are thereany books that detail issues related to a mediterrean climate? thank you. arnold freeman