In New South Wales avocados are grown in the coastal areas north of Gosford with some plantings in the irrigation areas along the lower Murray River. The principal soils are basaltic clay loams on the coast and deep sands at Stuarts Point and on the Murray.
The main cultivar is Hass. It is grafted on seedling rootstocks derived from non-edible avocados of the Mexican or Guatemalan botanical races. Fuerte and Sharwil, once popular varieties, are now on the decline. Lamb Hass, a new variety, is being planted in some areas. Fruit are harvested from April to December.
Diseases are the biotic factor with the greatest impact in cacai production in Latin America and the world. In Central America, bacteria, viruses and nematodes do not cause significant problems; instead, fungi and similar organisms are responsible for most of the losses.
The Tropical Agricultural Research and Higher Education Center (CATIE)
The mints are grown for the essential oils that they produce in specialized glands on the leaves and stems. This oil is readily recovered by steam distillation of the harvested hay. Peppermint and spearmint oils are widely used to flavor chewing gum, candy, pharmaceuticals, toothpaste and other oral hygiene products. More than 30% of the mint oil produced in the U.S. is exported to Europe and other countries around the world.
Purdue University Cooperative Extension Service