Thermal Characteristics of Screenhouse Configurations in a West-African Tropical Climate

Desmarais, G.; Raghavan, G.S. Vigaya

doi:10.17660/actahortic.1997.443.4

Acta Hortic.

1997

DOI: 10.17660/actahortic.1997.443.4

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Thermal Characteristics of Screenhouse Configurations in a West-African Tropical Climate

G. Desmarais¹,

G.S. Vigaya Raghavan²

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Cited by 7 publications

(1 citation statement)

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“…Cabbages are therefore heavily treated by insecticides and often with inappropriate and hazardous chemicals. We planned to remove the net during hot periods of the day when the ßight activities of pests were reduced to suppress the problems of overheating and excessive shade with insect-proof screens used in tropical conditions (Desmarais 1996).…”

mentioning

confidence: 99%

Efficacy of Mosquito Netting for Sustainable Small Holders’ Cabbage Production in Africa

Martin¹,

Assogba-Komlan

Houndete

et al. 2006

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The efficacy of a mosquito netting to protect cabbages, Brassica oleracea L., against pests was investigated in field trials in Benin, West Africa. A polyester net covered the plants at night by using a wood armature. The net was removed during the day to prevent overheating and excessive shade, both problems of insect-proof screens used under tropical conditions. The number of all lepidopteran larvae with netting protection and foliar insecticide sprays was significantly lower than the unprotected control. The number of diamondback moth, Plutella xylostella (L.), was significantly lower with netting protection compared with foliar insecticide sprays and control. Netting treated with deltamethrin gave total protection of young plants against the aphid Lipaphis erysimi (Kaltenbach). At harvest, the number of marketable cabbages protected with untreated netting was significantly higher compared with the production with foliar insecticide sprays. The protection of cabbages with netting can be an economically viable method. Considering the price of cabbages on local markets (US dollars 1/unit), the net returns per 100 m2 were US dollars 247 by using netting, US dollars 149 by using insecticides, and US dollars 117 for controls. The net returns for using netting are based on replacing the netting each crop cycle. But netting can be reused several times, depending upon conditions, increasing the profit margin. The netting protection may be an alternative to the growing unsustainable practices of vegetable cropping in peri-urban areas of tropical countries.

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confidence: 99%

Efficacy of Mosquito Netting for Sustainable Small Holders’ Cabbage Production in Africa

Martin¹,

Assogba-Komlan

Houndete

et al. 2006

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Effects of a shading screen on microclimate and crop water requirements

Möller

Assouline

2006

Irrig Sci

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Measuring optimality degrees of microclimate parameters in protected cultivation of tomato under tropical climate condition

Shamshiri

2017

Measurement

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Thermal Characteristics of Screenhouse Configurations in a West-African Tropical Climate

Cited by 7 publications

References 28 publications

Efficacy of Mosquito Netting for Sustainable Small Holders’ Cabbage Production in Africa

Efficacy of Mosquito Netting for Sustainable Small Holders’ Cabbage Production in Africa

Effects of a shading screen on microclimate and crop water requirements

Measuring optimality degrees of microclimate parameters in protected cultivation of tomato under tropical climate condition

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