Gamma-Irradiated Pink Bollworms:1 Attractiveness, Mating, and Longevity of Females2

Flint, H. M.; Staten, R. T.; Bariola, L. A.; Palmer, D. L.

doi:10.1093/ee/2.1.97

Cited by 7 publications

(6 citation statements)

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“…Female pink bollworms reared on synthetic diets and irradiated with doses up to 25 krad were as attractive to native males as unirradiated females in the field, and adult longevity was unaffected by up to 25 krad of radiation (Flint et al . ). Flint et al .…”

Section: Discussionmentioning

confidence: 97%

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Detection and monitoring of pink bollworm moths and invasive insects using pheromone traps and encounter rate models

Byers

Naranjo

2014

Journal of Applied Ecology

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Summary1. The pink bollworm moth Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae) is one of the most destructive pests in agriculture. An ongoing eradication program using a combination of sex pheromone monitoring and mating disruption, irradiated sterile moth releases, genetically modified Bt cotton and local insecticide applications have all but exterminated the pink bollworm from the south-western USA and portions of northern Mexico. However, the continued threat of reinvasion from Mexico reinforces the need to improve pheromone-based monitoring. Invasions from other parts of the world such as India, where resistance to single-gene transgenic Bt cotton has evolved, further heightens the need for better monitoring strategies. 2. The mean flight height and standard deviation (SD) of the vertical flight distribution of pink bollworm males were estimated from catches on transparent sticky cylinder traps baited with synthetic pheromone at several heights above-ground. An effective attraction radius (EAR) of a standard pheromone lure was estimated from male moth catches on the pheromone-baited sticky traps and many similar blank traps. The circular EAR c was estimated from the spherical EAR and SD. 3. The EAR of a pheromone lure for pink bollworm was 1Á03 m, and the EAR c was 2Á61 m. The mean flight height of males was 0Á82 m, and the vertical flight distribution SD was 0Á26 m. 4. A computer program simulated male moth movement and capture on various numbers of traps of EAR c distributed over areas of 1-100 km 2 . The simulated catch results were comparable to predictions using the EAR c with modified encounter rate equations of Royama and Rogers. The encounter rate equations were solved for initial populations of male moths in the regions, and Poisson statistics were used to calculate population confidence limits. 5. Synthesis and applications. Encounter rate models and Poisson methods can be used to determine levels of pheromone trap densities that are likely to detect and estimate low population levels of resident or invasive pink bollworms and many other pest insect species.

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Section: Discussionmentioning

confidence: 97%

“…No adverse affects of irradiation on longevity or dispersal have been noted (Graham & Mangum ; Flint et al . , ).…”

Section: Methodsmentioning

confidence: 99%

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Detection and monitoring of pink bollworm moths and invasive insects using pheromone traps and encounter rate models

Byers

Naranjo

2014

Journal of Applied Ecology

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“…In the last years interest in somatic effects has increased. Most previous studies concerned with the effect of radiation on insects upon the life span of the adult: FLINT et al (1972); REDA and SOMA- KOKOV (1970); ROCKSTEIN et al (1967); BIOSOT et al (1966); DAGET (1966) and WHARTON (1959).…”

Section: Introductionmentioning

confidence: 99%

Gamma‐irradiation of immature stages of the beetle Dermestes frischii Kug.

Abdu

Shaumar

1974

Zeitschrift für Angewandte Entomologie

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Newly hatched and last larval instar of Dermestes frischii Kug. were exposed to different dose levels of gamma radiation. Larval and pupal periods were increased with the increase of irradiated dose. At 10 Krad, longevity of larval period was 31.18 ± 0.98 and for pupal stage 9.54 ± 0.68 days, while for control the longevity was 16.71 ± 1.41 and 5.02 ± 1.40 days respectively. Longevity of pupal stage produced from irradiated last larval instar was more than the produced from first larval instar. The reduction of the longevity of adult produced from irradiated immature stages was also increased with the increase of dose level. Zusammenfassung Gamma‐Bestrahlung der Entwicklungsstadien von Dermestes frischii Kug. Frisch geschlüpfte und alte Larven von D. frischii wurden einer Gammabestrahlung verschiedener Dosis ausgesetzt. Die Larval‐ und Puppendauer wurde mit ansteigender Dosis beschleunigt. Bei 10 Krad betrugen die Larvendauer 31,2 und die Puppendauer 9,5 Tage gegenüber den Kontrollwerten von 16,7 und 5,0 Tagen. Die Lebensdauer von Puppen, die aus bestrahlten alten Larven entstanden, war gröβer als jene der aus jungen Larven hervorgegangenen Puppen. Die Lebensdauer der Imagines, die aus bestrahlten Entwicklungsstadien hervorgingen, verminderte sich mit Zunahme der Strahlendosis.

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“…The precopulatory behavior of untreated female and male T. ni has been thoroughly reviewed by McLaughlin & Shorey (1977). Recent studies with various insect species indicate that low doses of irradiation have no immediate deleterious effects on female or male attractiveness and pheromone communication and other premating behavior are affected only at high doses (Statler, 1970;Anwar & Feron, 1971;Flint et aL, 1973). Stimmann et al (1972) found that irradiated T. ni females were able to attract as many males as did normal females in the field.…”

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confidence: 99%

ALTERATIONS IN PREMATING BEHAVIOR AND PHEROMONE BIOLOGY OF GAMMA‐IRRADIATED TRICHOPLUSIA NI (LEPIDOPTERA: NOCTUIDAE)

Szentesi

McLAUGHLIN²,

Coffelt³

1977

Entomologia Exp Applicata

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Exposure of female cabbage looper pupae, Trichoplusia ni, to gamma irradiation at 0 to 72 hr before eclosion resulted in significantly reduced moving and calling activity of the adults. The effects were dose‐related from 10 to 40 kR. Generally, irradiation in a nitrogen atmosphere slightly reduced deleterious effects, but fractionation of the radiation dose did not. Four‐day‐old irradiated females contained significantly more sex pheromone than untreated females, indicating that loss of pheromone is positively correlated to the amount of calling activity. Males exposed to 20 kR or 40 kR in nitrogen were not affected in their flight response in an olfactometer to a level of synthetic pheromone ca. equal to that released by a calling female or to 0.1 x this level. The response of males exposed to 40 kR in air, however, was significantly decreased at the lower pheromone concentration. ZUSAMMENFASSUNG VERÄNDERUNGEN IM VORKOPULATIONSVERHALTEN UND IN DER PHEROMONBIOLOGIE BEI GAMMABESTRAHLTEN TRICHOPLUSIA NI (LEPIDOPTERA: NOCTUIDAE) Puppen von Trichoplusia ni wurden 0–72 Stunden vor dem Schlüpfen der Falter einer Gamma‐bestrahlung ausgesetzt. Die Bestrahlung betrug 10–40 kR und erfolgte entweder in Luft (ununterbrochen oder fraktioniert) oder in einer Stickstoffatmosphäre. Die Effekte der verschiedenen Behandlungen auf das Rufverhalten der Weibchen (CB), die Bewegungsaktivität (MA) und den Pheromontiter wurden beurteilt. Die Reaktion bestrahlter Männchen auf das synthetische Sexual‐pheromon (Z‐7‐Dodecen‐l‐ol‐azetat) wurde gemessen bei einer Konzentration, wie sie von einem Weibchen erzeugt wird. und bei einem Zehntel dieser Menge.

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Gamma-Irradiated Pink Bollworms:1 Attractiveness, Mating, and Longevity of Females2

Cited by 7 publications

References 0 publications

Detection and monitoring of pink bollworm moths and invasive insects using pheromone traps and encounter rate models

Detection and monitoring of pink bollworm moths and invasive insects using pheromone traps and encounter rate models

Gamma‐irradiation of immature stages of the beetle Dermestes frischii Kug.

ALTERATIONS IN PREMATING BEHAVIOR AND PHEROMONE BIOLOGY OF GAMMA‐IRRADIATED TRICHOPLUSIA NI (LEPIDOPTERA: NOCTUIDAE)

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