The effect of the association of watermelon (Citrullus lana tus) with corn (Zea mays) on the population and damage caused by three insects pests and the yield of those crops in Ciénaga Grande de Lorica, Córdoba

https://doi.org/10.25100/socolen.v30i2.9547
Associations Monocultures Density of plants lncidence Profitability

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Published: Dec 31, 2004
Issue: Vol. 30 No. 2 (2004)
Section Agriculture / Research paper

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Authors

LAGUANDIO DEL C. BANDA S. Universidad Nacional de Colombia, Sede Bogotá. Facultad de Agronomía
DARÍO CORREDOR-P. Universidad Nacional de Colombia, Sede Bogotá. Facultad de Agronomía
GUILLERMO CORREDOR-S. Universidad Nacional de Colombia, Sede Bogotá. Facultad de Agronomía
Abstract

In order to understand the effect of the association of watermelon [Citrillus lanatus (Thumb) Matsum &:. Nakai] with corn  (Zea mays L.), on Diabrotica balteata Lec. and Aphis gossypii Glover in watermelon. on Spodoptera frugiperda Smith and D. balteata in corn. and yields in the Ciénaga Grande de Lorica  (Córdoba - Colombia). three associations were evaluated with watermelon (4.800 plants per hectare) with corn  ( 10.000, 20.000 and 30.000 plants per hectare) and their respective monocultures. during the first semester of 2000.  The experimental design used was a complete randomized block. Populations and the damage of the insects. yields. quality of the watermelon. profitability and the land equivalent ratio (ler) were quantified. Results showed statistically significance reduction in the population and damage of D. balteata and A. gossypii in associated watermelon with respect to the monoculture. In corn the  incidence of S. frugiperda was less in 10.000 plants per hectare and statistical differences between treatments were not detected for D. balteata. The best yield  and quality of watermelon were obtained in association with  10.000 corn plants per hectare:  21.94 l kg/ha; and the least with 30.000 corn plants per hectare: 6.800 kg/ha; in the monoculture yield was 20.460 kg/ha. Corn yield varied between  1.280 and 2.813 kg/ha,  proportional to the density of plants. Economically, the best treatment was watermelon with corn at the lowest density. with the highest index of 3, 1 and a ler of 1.55; this was favored by a smaller population and incidence of the insects pests studied with a preference for monoculture over associated systems.

How to Cite
DEL C. BANDA S., L., CORREDOR-P., D., & CORREDOR-S., G. (2004). The effect of the association of watermelon (Citrullus lana tus) with corn (Zea mays) on the population and damage caused by three insects pests and the yield of those crops in Ciénaga Grande de Lorica, Córdoba. Revista Colombiana De Entomología, 30(2), 161–169. https://doi.org/10.25100/socolen.v30i2.9547
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