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Caribbean Information System for the Agricultural Sciences: Alma Jordan Library, The University of the West Indies.

Research on pickleworm (Diaphania nitidalis) and melonworm (D. hyalinata), key insect pests of cucurbit vegetables, carried out by the United States Department of Agriculture, Agricultural Research Service is outlined. Topics discussed include: role of antibiosis and oviposition in plant resistance in cucumber and squash; seasonal fluctuations in population density in Southern Florida; importa ...

SUBJECT: hortalizas cucurbitaceas; plante legumiere cucurbitacee; organismos para control biologico/ historia natural; plante fruitiere cucurbitacee; trichogramma

POSTED TO: Proceedings - Caribbean Food Crops Society (CAGRIS)

Native natural enemies surveyed did not give adequate control. A study of natural enemies from other parts of South America led to the release of the pupal parasite Spilochalcis sp. nr. erythrina which was obtained in Brazil. The distribution of parasites of Brassolis sophorae in South America is tabulated

SUBJECT: guyana/ enemigos naturales; insectos depredadores de las hojas; arthropode auxiliaire; insecte phyllophage; lutte biologique

POSTED TO: Proceedings - Caribbean Food Crops Society (CAGRIS)

Two field experiments were conducted in 1983-84 at the Fortuna Research and Development Center, Puerto Rico, to determine the economic threshold of pigweed (Amaranthus dubius), jungle rice (Echinochloa colona and horse purslane (Trianthema portulacastrum) and their critical period of competition in drip irrigated peppers (Capsicum annuum L. var. Cubanelle). Pepper seedlings were 42 days old at ...

SUBJECT: malezas; mauvaise herbe; amaranthus dubius; capsicum annuum; competition biologique

POSTED TO: Proceedings - Caribbean Food Crops Society (CAGRIS)

Brood fish (Tilapia aurea) were stocked at rates of 2.7, 5.4 and 8.1 fish/sq. m. with 4:1 females to males in spawning nets (hapas) suspended in tanks. Mean fry production was 12.2, 15.1 and 23.8 fish/sq. m. per hapa per day. When fry were stocked at rates of 26, 52, 78, 104, 130 and 155 fish/sq. m. and fed 15 % of initial body weight daily for 3 weeks then at 5 % body weight, those at 26/sq. ...

SUBJECT: tilapia; alevines; tilapia (genre); iles vierges (eu); larve de poisson

POSTED TO: Proceedings - Caribbean Food Crops Society (CAGRIS)

Marine fishery resources in the Lesser Antilles are at or near maximum sustainable yield or are overfished and show limited prospects for further exploitation. The regional potential for fish and invertebrate mariculture is discussed with particular reference to utilization of mangroves and salt ponds. The experiences in Jamaica where Tilapia nilotica culture was developed amongst small farmer ...

SUBJECT: exploitation des ressources; tilapia; caribe; caraibes; tilapia (genre)

POSTED TO: Proceedings - Caribbean Food Crops Society (CAGRIS)

Small farmers in the Eastern Caribbean spend about 30 % of total crop labour on land preparation, and another 30 % on post-planting weed control depending on the cropping system. Methods rely largely on hand labour, using cutlasses, hoes, forks and hand pulling of weeds. The only herbicide used in any quantity is paraquat. Constraints to the adoption of improved technologies include cash avail ...

SUBJECT: escarda; explotacion en pequena escala; petite exploitation; caribe; caraibes

POSTED TO: Proceedings - Caribbean Food Crops Society (CAGRIS)

Major pests of tomatoes in Trinidad include: the pin worm, Keiferia lycopersicella; the army worm, Spodoptera eridania; the fruit worm, Heliothis virescens; leaf miners, Liromyza spp.; fruit piercing bugs, Nezera viridula, and Phthia picta; and the mole cricket, Scapteriscus vicinus. Losses are small - approximately 6 % of fruits lost through direct feeding of the entire pest complex, and yiel ...

SUBJECT: keiferia; tomate; insecte nuisible; insectos daninos; heliothis

POSTED TO: Proceedings - Caribbean Food Crops Society (CAGRIS)

Causes of post harvest losses in the Caribbean and measures to reduce these losses by efficient marketing, improvement in post harvest handling, particularly refrigeration and packaging, are discussed

SUBJECT: hortalizas; fruits; legume; caribe; caraibes

POSTED TO: Proceedings - Caribbean Food Crops Society (CAGRIS)

In Trinidad and Tobago, vegetables are produced mainly on small farms. In an attempt to reduce time spent for production of high quality vegetables, farmers depend on chemical pest control rather than cultural pest management practices. Pesticide dosage and frequency of application is commonly excessively high which leads to secondary pest outbreaks. Provision of professional pest management s ...

SUBJECT: plante legumiere; plaguicidas; trinite et tobago; pesticide; trinidad y tobago

POSTED TO: Proceedings - Caribbean Food Crops Society (CAGRIS)

A solar cabinet dryer designed, built and tested at the UWI, Trinidad was used to dry green mango slices, sorrel, diced sweet potatoes and hot peppers. With loading densities of less than 5 kg/sq. m. of drying tray area drying was completed in 2 days. An average drying efficiency of 25 % for the complete cycle was achieved. The minimum cost per sq. m. of dryer area is US$20.00. This is accepta ...

SUBJECT: sechoir/ efficacite; sechage naturel; secadoras/ eficacia; capsicum annuum; secado natural

POSTED TO: Proceedings - Caribbean Food Crops Society (CAGRIS)