Fruit and veg shortages 'over by Sept'

Woolworths has warned shoppers of extreme shortages of fruit and vegetables. (AAP)

Consumers are warned to expect fruit and vegetable shortages at supermarkets for another six weeks, with supply expected to be back to normal by September.

Acting chief executive of the National Farmers' Federation Ash Salardini said empty shelves can be directly linked to poor weather earlier this year in parts of northern NSW and Queensland.