The mango does not require any particular soil, but the finer varieties yield good crops only where there is a well-marked dry season to stimulate fruit production. In rainy areas a fungal disease known as anthracnose destroys flowers and young fruits and is difficult to control. Propagation is by grafting or budding. Inarching, or approach grafting (in which a scion and stock of independently rooted plants are grafted and the scion later severed from its original stock), is widely practiced in tropical Asia but is tedious and relatively expensive. In Florida, more efficient methods?veneer grafting and chip budding?have been developed and are used commercially.