Bees for Development Journal Edition 102 - March 2012

Page 3

PHOTOS © CARLOS RUANO

IMPORTANCE OF STINGLESS BEES IN EL SALVADOR

Bees for Development Journal 102

Carlos Ruano & Miguel Hernández, Faculty of Agronomy Science, University of El Salvador, San Salvador, El Salvador

Artificial pots inside colony of Melipona beecheii

Keywords: Central America, cerumen, Melipona beecheii, meliponiculture, Nannotrigona testaceicornis, pollinator, Tetragonisca angustula

hollow logs, bamboo trunks, cement tubes or dried pumpkins. The management of these colonies is rudimentary and not all beekeepers check the inside of the hive. A few feed with syrup (water and sugar) during the rainy season. Over 60% do not know how to artificially reproduce colonies and over 55% harvest honey only once a year.

The University of El Salvador, through the Faculty of Agronomy Science’s project Stingless bees and their importance in agriculture researched the diversity of species and the location of stingless bees and beekeepers. The project also included research on tomato and sweet pepper pollination with stingless bees in green houses, and evaluation of the use of propolis in treatment of papilomatosis (disease of cattle). The project offered training to farmers in keeping stingless bees.

Problems

According to stingless beekeepers the main problems are:

• Pests - including “limoncillo” Lestrimelitta limao and “mosca”, mosquito Phoridae spp; • Deforestation and forest fires; • Inappropriate use of agrochemicals; • Theft of colonies; • Migration of farmers to cities or other countries;

Stingless bee species and meliponiculture

Twenty endemic stingless bee species were identified by our researchers in 2007 and combining these findings with previous inventories by other researchers increased the total to at least 22 species.

In many American countries meliponiculture (keeping stingless bees) is an ancient practice. Honey from stingless bees played an important role in religious traditions of the ancient Maya culture, and today there are over 1,000 families in El Salvador keeping stingless bees. The majority (72%) keep single stingless species, while 28% keep more than one species. The species kept most frequently is “jicote” Melipona beecheii followed by “chumelo” Tetragonisca angustula and “zarquita” Nannotrigona testaceicornis. Stingless beekeepers with Melipona beecheii harvest an average 2.17 litres of honey (range 0.75-7.50 litres). The price varies between US$2.67 and US$14.67 (€2.03-€11.13) per litre. Tetragonisca angustula produces on average 0.33 litres and the price ranges from US$1.00 to US$2.50 (€0.76- €1.90) for 10 ml. The cost of a colony of Melipona beecheii, including a log or box, varies from US$40 to US$100 (€30-€76) and for Tetragonisca angustula from US$10 to US$25 (€7-€19).

• Lack of technical knowledge.

Products and service

The honey from Melipona beecheii is used for food, as a natural antibiotic and to heal wounds and burns in humans and domestic animals. Honey from Tetragonisca angustula is used particularly as a treatment for eye diseases, including cataracts and conjunctivitis. There are other products and services that can provide extra income to beekeepers, such as the recycling of cerumen (wax mixed by bees with resins from trees), utilisation of pollen, processing of propolis, the sale of colonies and services for crop pollination.

The majority of stingless beekeepers are male and around 50 years old. They mostly use boxes for housing their colonies, although some still use

Cerumen is not usually processed, although a few stingless beekeepers melt it and use it to make receptacles for the bees to store pollen or honey so as to save their material, similar to providing beeswax foundation in

Horizontal brood combs of Melipona beecheii

Guard bee at hive entrance 3


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