Coffee agroforestry systems have been promoted because they have smaller environmental impact than sun grown coffee. The majority of shade grown coffee systems use leguminous trees capable of fixing N2 from the atmosphere, ...

In 2007, Puerto Rico imported 64 percent of the avocado consumed, which could suggest the economic potential of increasing its production, although this must take into consideration several factors, among others, production ...

Degradation and misuse of agricultural land has made it necessary to identify solutions to address this serious problem. Cover crops have long been used in the tropics to increase soil and water conservation, especially ...

An experiment was established at the Isabela Experiment Station to determine the effects of sustainable agricultural practices on plant-parasitic nematodes associated to pumpkin (Cucurbita moschata Dutch.). The experimental ...

The contribution of annual litter and the nitrogen mineralization rates (NMIN) in the field and in the laboratory were quantified. Three ecosystems were evaluated: 1) unshaded coffee (CSL); 2) shaded coffee (CSM), and 3) ...

Fruit flies are considered the most serious problem affecting fruit crops in the world, causing losts of millions of dollars. To evaluate the ocurrence of fruit flies of the genus Anastrepha on various citrus cultivars, ...

Two experiments were conducted to determine the effects of thrips populations in the severity of Alternaria allii under field conditions. Alternaria. allii and Acidovorax avenae subsp. citrulli severity and damage index ...

Plantain production (Musa spp.) in Central, South America and the Caribbean is limited by bacterial diseases. In Puerto Rico, the production of the plantain “Hua Moa” is affected by a disease called bunch abortion or choke ...

With the objective of controlling flower synchronization of the cultivar ‘Cortada’ of pigeon pea plants three experiments were conducted using three different plant growth regulators: gibberelic acid (GA3 and GA4), ...

Plant-parasitic nematodes and the banana weevil Cosmopolites sordidus are recognized as the most limiting factors for plantain production in Puerto Rico. The use of pesticides has been the traditional method for pest ...