scholarly journals Efficiency of the convergent ladybird beetle Hippodamia convergens against the legume aphid Aphis craccivora in laboratory and semi-felid conditions.

2020 ◽  
Vol 58 (3) ◽  
pp. 655-664
Author(s):  
Hadeer S. A. Rashed
Keyword(s):  
Aphis Craccivora ◽  
Hippodamia Convergens ◽  
Ladybird Beetle

scholarly journals THE PHENOLOGY AND DISTRIBUTION OF APHIDS IN CALIFORNIA ALFALFA AS MODIFIED BY LADYBIRD BEETLE PREDATION (COLEOPTERA: COCCINELLIDAE)

1980 ◽  
Vol 112 (5) ◽  
pp. 489-495 ◽  
Author(s):  
A. P. Gutierrez ◽  
C. G. Summers ◽  
J. Baumgaertner
Keyword(s):  
Acyrthosiphon Pisum ◽  
Pea Aphid ◽  
Hippodamia Convergens ◽  
Ladybird Beetle ◽  
Distribution Parameters ◽  
Aphid Populations

AbstractThe phenologies and distributions of pea aphid (Acyrthosiphon pisum (Harris)), blue alfalfa aphid (A. kondoi (Shinji)), and spotted alfalfa aphid (Therioaphis maculata (Buckton)) were intensively studied in California alfalfa. The results showed, as expected, that aphid populations across all densities were aggregated; but that ladybird beetle (Hippodamia convergens (G.-M.)) predation increased the degree of aggregation. The distribution parameters of the aphids were estimated using methods developed by Iwao and Kuno (1971).

LADYBIRD BEETLES AS PREDATORS OF THE POTATO PSYLLID

1933 ◽  
Vol 65 (11) ◽  
pp. 241-243 ◽  
Author(s):  
George E. Knowlton
Keyword(s):  
Potato Psyllid ◽  
Hippodamia Convergens ◽  
Ladybird Beetle ◽  
Ladybird Beetles ◽  
The One

During the spring of 1933, an adult convergent ladybird beetle, Hippodamia convergens Guerin, was placed in a 3-dram homeopathic vial with a number of nymphs of the potato psyllid, Paratrioza cockerelli (Sulc). The ladybird immediately grabbed a psyllid nymph and began to eat it. Ten fifth-instar psyllid nymphs were eaten by this predaceous beetle during the one and one-half hours that it was caged with the nymphs. It was noted that moving nymphs were taken more quickly than those at rest, but the beetle showed no reluctance at taking the scale-like nymphs which were quietly feeding.

A CONCEPTUAL MODEL FOR GROWTH, DEVELOPMENT, AND REPRODUCTION IN THE LADYBIRD BEETLE, HIPPODAMIA CONVERGENS (COLEOPTERA: COCCINELLIDAE)

1981 ◽  
Vol 113 (1) ◽  
pp. 21-33 ◽  
Author(s):  
A. P. Gutierrez ◽  
J. U. Baumgaertner ◽  
K. S. Hagen
Keyword(s):  
Simple Model ◽  
Physical Meaning ◽  
Growth And Development ◽  
Laboratory Experiments ◽  
Hippodamia Convergens ◽  
Maintenance Respiration ◽  
Ladybird Beetle ◽  
Predator Prey ◽  
Metabolic Costs ◽  
Growth Development

AbstractA simple model for growth and development of the ladybird beetle (Hippodamia convergens G-M.) which partitions aphid biomass eaten into components of excretion, assimilation, growth and/or reproduction, and metabolic costs associated with searching and maintenance respiration is reported. All parameters in the model were estimated from simple minimal laboratory experiments, and have biological and/or physical meaning. The effects of predator nutrition on aging, survival, and emigration were also modelled. Most rates in the model for growth, reproduction, and respiration are controlled by the interplay between prey consumption and maximum prey biomass demands. The model for biomass flow is related to standard predator/prey theory.

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