Abstract
A method of large-scale breeding of Dysdercus peruvianus G. (family Pyrrhocoridae) with natural food and giving a hundred-fold population increase each month has been developed in the Entomology Laboratories of the Experimental Agricultural Station at La Molina, Lima, Peru. Cages 90 x 60 x 60 cm are used; 2000 adults are placed in each, care being taken that there are not more males than females (two males to each three females are sufficient). The cage floor consists of wire mesh with nine strands per square inch; the roof, made of cloth or mesh with 14-18 strands per square inch, is fitted with a 15-W fluorescent light or a 60-W incandescent light, and the walls are of wood or some other washable material. Inside the cages are placed two containers with levant cotton shoots, and about 500 g of seed are scattered on the floor. Under the mesh is a sloping floor of plexiglas or some other smooth material which allows the eggs to slide down to a collecting channel ending in a tube marked in centimetres (1 cm{sup 3} = 4250 eggs). Similar cages, but with a wooden or brass floor, are used to contain Vulgar-Fraction-One-Half cm{sup 3} of eggs,
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Simon, J. E.
[1]
- Estacion Experimental Agricola de la Molina, Lima (Peru)
Citation Formats
Simon, J. E.
Large-Scale Breeding of Dysdercus Peruvianus G. and its Sterilization by Gamma Rays; Cria Masal de Dysdercus Peruvianus G. y su Esterilizacion Mediante Rayos Gamma.
IAEA: N. p.,
1968.
Web.
Simon, J. E.
Large-Scale Breeding of Dysdercus Peruvianus G. and its Sterilization by Gamma Rays; Cria Masal de Dysdercus Peruvianus G. y su Esterilizacion Mediante Rayos Gamma.
IAEA.
Simon, J. E.
1968.
"Large-Scale Breeding of Dysdercus Peruvianus G. and its Sterilization by Gamma Rays; Cria Masal de Dysdercus Peruvianus G. y su Esterilizacion Mediante Rayos Gamma."
IAEA.
@misc{etde_22106392,
title = {Large-Scale Breeding of Dysdercus Peruvianus G. and its Sterilization by Gamma Rays; Cria Masal de Dysdercus Peruvianus G. y su Esterilizacion Mediante Rayos Gamma}
author = {Simon, J. E.}
abstractNote = {A method of large-scale breeding of Dysdercus peruvianus G. (family Pyrrhocoridae) with natural food and giving a hundred-fold population increase each month has been developed in the Entomology Laboratories of the Experimental Agricultural Station at La Molina, Lima, Peru. Cages 90 x 60 x 60 cm are used; 2000 adults are placed in each, care being taken that there are not more males than females (two males to each three females are sufficient). The cage floor consists of wire mesh with nine strands per square inch; the roof, made of cloth or mesh with 14-18 strands per square inch, is fitted with a 15-W fluorescent light or a 60-W incandescent light, and the walls are of wood or some other washable material. Inside the cages are placed two containers with levant cotton shoots, and about 500 g of seed are scattered on the floor. Under the mesh is a sloping floor of plexiglas or some other smooth material which allows the eggs to slide down to a collecting channel ending in a tube marked in centimetres (1 cm{sup 3} = 4250 eggs). Similar cages, but with a wooden or brass floor, are used to contain Vulgar-Fraction-One-Half cm{sup 3} of eggs, which are scattered on the floor covered with levant cotton seed. The eggs hatch and the nymphs grow in this cage until they reach the adult stage, when they are taken out in batches of 2000 and transferred to tanks for adults or irradiated. Doses of 1000, 2500, 5000 and 10 000 R were used, and sterility was obtained from 2500 R, at which dose eggs were produced and development occurred to the first nymph stage. At 5000 and 10 000 R the eggs did not develop. At 1000 R development was normal, and in addition the cycle was accelerated and there were more eggs. Irradiated males and females accepted, and were accepted by, normal insects without discrimination. Competence levels of 2, 8, 32 and 128 males were tested. (author) [Spanish] Un metodo de crfa masal de Dysdercus peruvianus G. (Fam. : Pyrrhocoridae) mediante alimentacion natural, que permite centuplicar la poblacion mensualmente, ha sido desarrollado en los laboratorios de entomologfa de la Estacion Experimental Agrícola de La Molina (Lima-Perd). Se emplean jaulas de 90 x 60 x 60 cm donde se liberan 2000 adultos procurando que el numero de .machos no sea superior al de hembras (dos machos por cada tres hembras son suficientes). El piso de las jaulas es de malla metalica de nueve hilos por pulgada cuadrada; el techo de tela o malla de 14 a 18 hilos por pulgada cuadrada esta provisto de una luz fluorescente de 15 W (o incandescente de 60 W), las paredes son de madera u otro material lavable. Dentro de las jaulas se colocan dos recipientes con brotes terminales de algodonero y sobre el piso se esparcen unos 500 g de semilla. Debajo de la malla hay un piso inclinado de plexiglas u otro material liso que permite a los huevos deslizarse hasta una canaleta de recoleccion terminada en una probeta graduada en centimetros (1 cm{sup 3} = 4250 huevos). En jaulas similares pero con piso de madera o laton se pone Vulgar-Fraction-One-Half cm{sup 3} de huevos que se esparcen en el piso cubierto de semilla de algodonero. Los huevos eclosionan y las ninfas se desarrollan en esta jaula hasta alcanzar el estado adulto, de donde se las extrae en grupos de dos mil y se las pasa a jaulas de adultos o irradiados. Se probaron dosis crecientes de 1000, 2500, 5000 y 10 000 R, obteniendose esterilidad desde 2500 R en que hubo produccion de huevos y desarollo hasta ninfa I. Con 5000 y 10 000 R los huevos no se desarrollaron. Con 1000 R el desarrollo fue normal e inclusive el ciclo fue acelerado y el numero de huevos mayor. Los machos y las hembras irradiados aceptaron y fueron aceptados, indistintamente, por los normales. Fueron probados niveles de competencia de 2, 8, 32 y 128 machos por pareja normal. (author)}
place = {IAEA}
year = {1968}
month = {Jun}
}
title = {Large-Scale Breeding of Dysdercus Peruvianus G. and its Sterilization by Gamma Rays; Cria Masal de Dysdercus Peruvianus G. y su Esterilizacion Mediante Rayos Gamma}
author = {Simon, J. E.}
abstractNote = {A method of large-scale breeding of Dysdercus peruvianus G. (family Pyrrhocoridae) with natural food and giving a hundred-fold population increase each month has been developed in the Entomology Laboratories of the Experimental Agricultural Station at La Molina, Lima, Peru. Cages 90 x 60 x 60 cm are used; 2000 adults are placed in each, care being taken that there are not more males than females (two males to each three females are sufficient). The cage floor consists of wire mesh with nine strands per square inch; the roof, made of cloth or mesh with 14-18 strands per square inch, is fitted with a 15-W fluorescent light or a 60-W incandescent light, and the walls are of wood or some other washable material. Inside the cages are placed two containers with levant cotton shoots, and about 500 g of seed are scattered on the floor. Under the mesh is a sloping floor of plexiglas or some other smooth material which allows the eggs to slide down to a collecting channel ending in a tube marked in centimetres (1 cm{sup 3} = 4250 eggs). Similar cages, but with a wooden or brass floor, are used to contain Vulgar-Fraction-One-Half cm{sup 3} of eggs, which are scattered on the floor covered with levant cotton seed. The eggs hatch and the nymphs grow in this cage until they reach the adult stage, when they are taken out in batches of 2000 and transferred to tanks for adults or irradiated. Doses of 1000, 2500, 5000 and 10 000 R were used, and sterility was obtained from 2500 R, at which dose eggs were produced and development occurred to the first nymph stage. At 5000 and 10 000 R the eggs did not develop. At 1000 R development was normal, and in addition the cycle was accelerated and there were more eggs. Irradiated males and females accepted, and were accepted by, normal insects without discrimination. Competence levels of 2, 8, 32 and 128 males were tested. (author) [Spanish] Un metodo de crfa masal de Dysdercus peruvianus G. (Fam. : Pyrrhocoridae) mediante alimentacion natural, que permite centuplicar la poblacion mensualmente, ha sido desarrollado en los laboratorios de entomologfa de la Estacion Experimental Agrícola de La Molina (Lima-Perd). Se emplean jaulas de 90 x 60 x 60 cm donde se liberan 2000 adultos procurando que el numero de .machos no sea superior al de hembras (dos machos por cada tres hembras son suficientes). El piso de las jaulas es de malla metalica de nueve hilos por pulgada cuadrada; el techo de tela o malla de 14 a 18 hilos por pulgada cuadrada esta provisto de una luz fluorescente de 15 W (o incandescente de 60 W), las paredes son de madera u otro material lavable. Dentro de las jaulas se colocan dos recipientes con brotes terminales de algodonero y sobre el piso se esparcen unos 500 g de semilla. Debajo de la malla hay un piso inclinado de plexiglas u otro material liso que permite a los huevos deslizarse hasta una canaleta de recoleccion terminada en una probeta graduada en centimetros (1 cm{sup 3} = 4250 huevos). En jaulas similares pero con piso de madera o laton se pone Vulgar-Fraction-One-Half cm{sup 3} de huevos que se esparcen en el piso cubierto de semilla de algodonero. Los huevos eclosionan y las ninfas se desarrollan en esta jaula hasta alcanzar el estado adulto, de donde se las extrae en grupos de dos mil y se las pasa a jaulas de adultos o irradiados. Se probaron dosis crecientes de 1000, 2500, 5000 y 10 000 R, obteniendose esterilidad desde 2500 R en que hubo produccion de huevos y desarollo hasta ninfa I. Con 5000 y 10 000 R los huevos no se desarrollaron. Con 1000 R el desarrollo fue normal e inclusive el ciclo fue acelerado y el numero de huevos mayor. Los machos y las hembras irradiados aceptaron y fueron aceptados, indistintamente, por los normales. Fueron probados niveles de competencia de 2, 8, 32 y 128 machos por pareja normal. (author)}
place = {IAEA}
year = {1968}
month = {Jun}
}