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  • 1
    Electronic Resource
    Electronic Resource
    Functional response ofCurinus coeruleus (Col.: Coccinellidae) toHeteropsylla cubana (Hom.: Psyllidae) on artificial and natural substrates (1992)
    Springer
    BioControl 37 (1992), S. 555-564 
    Details
    ISSN: 1573-8248
    Keywords: Functional response ; Curinus coeruleus ; Heteropsylla cubana ; Leucaena leucocephala ; biological control ; host-plant resistance ; Réponse fonctionnelle ; Curinus coeruleus ; Heteropsylla cubana ; Leucaena leucocephala ; lutte biologique ; variétés résistantes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé Des résultats obtenus en laboratoire sur la réponse fonctionnelle des adultes deCurinus coeruleus (Mulsant) aux nymphes deHeteropsylla cubana Crawford sur des substrats differents ont révété un effet significatif du substrat sur l'ingestion des nymphes à différents densités. Les substrats utilisés étaient composés de matière foliaire deLeucaena leucocephala (Lam) de Wit d'espèces apparentées en plus d'un substrat de papier comme témoin. Les résultats obtenus pourraient être utiles en ce qui concerne des projets intégrant lutte biologique et sélection de variétés résistantes.
    Notes: Abstract Laboratory measurements of the functional response of adultCurinus coeruleus (Mulsant) to nymphs ofHeteropsylla cubana Crawford on filter paper and on leaves of different host plants showed a significant effect of these different substrates on nymph consumption at several different densities. Moreover, this effect may be explained by the influence of the substrate on the search rate of the predator. Host plants tested includedLeucaena leucocephala (Lam) de Witt,L. diversifolia (Schlecht.) Benth. andL. pallida Britton and Rose. Results obtained may be relevant to plant-protection research programs involving the integration of biological control with host-plant resistance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02372325
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  • 2
    Electronic Resource
    Electronic Resource
    Kairomones and their use for management of entomophagous insects (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 673-680 
    Details
    ISSN: 1573-1561
    Keywords: Trichogramma ; Hymenoptera ; Trichogrammatidae ; kairomone ; Heliothis zea ; biological control ; pest management ; parasitoids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A kairomone from adultHeliothis zea (Boddie) scales is an important factor in the host selection process ofTrichogrammapretiosum Riley. If the host density is sufficiently high (i.e., 1 egg/500 cm2) and higher), a complete coverage or solid treatment of kairomone spray may be the optimum for increasing parasitization rates, but this is not the case at lower host densities (e.g., 1 egg/2000 cm2). At the lower densities, the kairomone must be distributed in such a way as to retain the parasitoids in the target area without inhibiting their movement from one ovi-position site to the next. Simulated moth scale particles appear to fill this need since their density can be regulated to provide the optimum frequency of parasitoid stimulation and thus maximum rates of parasitization at prevailing host densities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00986552
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  • 3
    Electronic Resource
    Electronic Resource
    Kairomones and their use for management of entomophagous insects (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 507-511 
    Details
    ISSN: 1573-1561
    Keywords: Chrysopa carnea ; Heliothis zea ; kairomones ; predators ; biological control ; entomophagy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Evidence is presented that demonstrates the presence of kairomones for larvae ofChrysopa carnea Stephens in materials associated with egg deposition by femaleHeliothis zea (Boddie). These kairomones are involved in prey finding and/or acceptance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00989071
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