2-(E)-nonen-1-ol: Male attractant for chafersAnomala vitis Fabr. andA. dubia Scop. (Coleoptera: Scarabaeidae)

1994 ◽  
Vol 20 (10) ◽  
pp. 2481-2487 ◽  
Author(s):  
Miklós Tóth ◽  
Walter Soares Leal ◽  
István Szarukán ◽  
Mátyás Lesznyák ◽  
Gábor Szöcs
Keyword(s):  

1966 ◽  
Vol 17 (5) ◽  
pp. 687 ◽  
Author(s):  
MA Bateman ◽  
AH Friend ◽  
F Hampshire

An experiment designed to assess the usefulness of a male attractant, 4-(p-acetoxypheny1)butan-2-one, for the control of relatively isolated populations of the Queensland fruit fly, is described. Traps baited with the lure and an insecticide were distributed at fairly high density throughout a small town and its immediate surroundings, while a similar town nearby was left untreated for purposes of comparison. The numbers of males killed each week in the treated town were estimated, and in both towns regular measurements were made of: (i) ratios of males to females; (ii) rates of insemination of mature females; and (iii) rates of infestation of fruit. The results show that there was a clear effect of the treatment in the early part of the season, but that this diminished as the season progressed until finally there was little difference between the populations. We conclude that this male attractant, used alone, is unlikely to provide effective control of the Queensland fruit fly, except perhaps when used against thoroughly isolated populations. It may, however, be more useful if used in combination with other methods which provide some protection against inseminated females.



2007 ◽  
Vol 22 (4) ◽  
pp. 241-247
Author(s):  
Brian M. Shirley ◽  
Stephen Cook

Abstract Seed orchards produce high-quality seed from selected tree genotypes. In the intermountain west, Conophthorus ponderosae Hopkins (Coleoptera: Scolytidae) is a pest in seed orchards of ponderosa pine, Pinus ponderosa (Laws). The effect of myrcene as a deterrent to coneattack by C. ponderosae in a ponderosa pine seed orchard was examined. Two factors were considered, timing of cone cluster attack and average brood production per cone cluster. There was a delayed attack by C. ponderosae on cones treated with vials of myrcene attached at thebase of cone clusters. During both 2003 and 2004, final brood production per cone was not affected significantly by the presence of myrcene. During 2003, brood production was influenced by the timing of attack, with later attacks resulting in fewer brood adults per cone cluster. The toxicity of myrcene to adult C. ponderosae was examined in a laboratory and compared with that of (+)-α-pinene, another host-produced monoterpene that acts as a synergist for the male attractant pheromone pityol.





2019 ◽  
Vol 112 (6) ◽  
pp. 2976-2983
Author(s):  
Yusuke Ikegawa ◽  
Atsushi Honma ◽  
Chihiro Himuro ◽  
Takashi Matsuyama

Abstract Quarantine pests in plants can be a serious agricultural problem; many eradication programs using area-wide control measures have been implemented worldwide to combat this threat. Surveillance measures using sex pheromone (in general, male-attractant) traps are also widely implemented for rapid control and eradication of invasive pests. If initial pest colonization can be determined based on temporal count data of trapped insects (i.e., males), and countermeasures are applied only during colonization, costs incurred by these countermeasures would be dramatically reduced, especially in areas with frequent invasions. In this study, we developed a system to detect initial pest colonization, and to narrow down colonized regions using estimated temporal count data of the sweet potato weevil, Cylas formicarius Fabricius (Coleoptera: Curculionidae), in Tsuken Island, Okinawa, Japan. We verified the system by comparing our estimates to actual colonization data obtained via regular host plant surveys. Results indicated that our system was able to successfully detect pest colonization and estimate colonized regions. In this study, we discuss the conditions (i.e., pest biology, environment, etc.) that are optimal for application of our system.



2007 ◽  
Vol 100 (4) ◽  
pp. 1124-1128 ◽  
Author(s):  
Eric B. Jang ◽  
Victor Casana-Giner ◽  
James E. Oliver


1967 ◽  
Vol 99 (11) ◽  
pp. 1164-1193 ◽  
Author(s):  
John H. Borden

AbstractVarious aspects of the behavior of I. confusus (LeConte) relating to the production of and response to male attractant were studied. Storage at 8.0 °C and 100% R.H. had no adverse effect on survival, response to male attractant, or predisposition to fly. Low humidity and high temperatures (21 °C) adversely affected behavior and survival. Beetles conditioned either in natural or constant environments responded at high levels throughout a 24-hour period. Female response to male frass reached a low of 24.2% in January and February and rose to a peak of 76.6% in May and June. Response to benzene extract of male frass fell moderately during autumn and winter, indicating a lowered response ability for overwintering populations. Male response was lower and more erratic but followed the same seasonal trends.After brief exposure periods, even previous nonresponders oriented to male attractant at significantly higher levels than the total original population. Long-term confinement in an atmosphere containing male frass odor caused a reduction in response of both sexes to male frass extract, presumably because of adaptation of olfactory receptors.Flight attempts by both sexes occurred between 25° and 40 °C but were severely inhibited at these extremes. Light intensities below 431 luxes suppressed flight. Optimal take-off temperatures were 30 °C for males and 32.5 °C for females. Both contact with male frass and with attractive air reduced the take-off attempts of both sexes to near zero. Attractive odor in the air still suppressed flight significantly after beetles had been conditioned up to 4 hours in contact with male frass.Teneral males produced attractant after a long maturation period. Single, mature males produced attractant up to 18 days, but after mating, productivity declined in direct correlation with the number of females per male. Single males produced frass throughout the day but maximum production was coincident with peak female emergence and flight. Male frass was significantly less attractive 15 minutes after exposure to open air and after 1 hour, very little attraction remained.No trends in the ability of newly emerged adults to respond to male attractant were noted over a 30-day period. Emerging brood and re-emerging parent adults are responsive to flight stimuli, but darkened callows and parent adults removed from galleries could not be induced to fly. Reproducing females show a greatly reduced response to male attractant.



1983 ◽  
Vol 115 (5) ◽  
pp. 539-550 ◽  
Author(s):  
A. J. Stock ◽  
J. H. Borden

AbstractEvidence for secondary attraction in the western balsam bark beetle, Dryocoetes confusus Swaine, was obtained in laboratory bioassays and field experiments. Both sexes showed positive responses to volatiles of the host tree, Abies lasiocarpa (Hook.) Nutt., indicating that primary attraction is probably important in host selection by this species. Male beetles initiated attack and within 6 h produced an aggregation pheromone(s), which was present in frass and in pentane extracts of the abdomens of males excised from logs. Both sexes responded to the pheromone. Abdominal extract of unmated males which had bored into host bark for 14 days was still attractive. Pheromone production was induced by exposing males to host resin volatiles. Mating had no effect on male attractiveness, but induced females to produce an antiaggregation pheromone which, in laboratory bioassays, at least partially inhibited response to male attractant. The attractive volatiles from male-infested logs were successfully captured on Porapak Q®. The development of laboratory bioassay and pheromone extraction techniques indicates that a pheromone isolation program is feasible.



2008 ◽  
Vol 98 (6) ◽  
pp. 535-541 ◽  
Author(s):  
C.G. Athanassiou ◽  
N.G. Kavallieratos ◽  
B.E. Mazomenos

AbstractField trials were carried out in order to evaluate some of the factors affecting male response of the almond seed wasp, Eurytoma amygdali Enderlein, to traps baited with the alkadienes (Z,Z)-6,9-tricosadiene and (Z,Z)-6,9-pentacosadiene, the male attractant of this species. The trials were conducted in Latomia, Microthivae, Kanalia and Sykourion (Thessaly, Central Greece) during the 2004 growing season. In all regions, captures in traps baited with a 7:3 ratio of the above blend significantly and positively correlated with male emergence from infested almonds that had been placed in cages in the experimental fields. Traps baited with the 7:3 pheromone ratio were significantly more effective in capturing males than traps baited with the 1:1 ratio, supporting the hypothesis that (Z,Z)-6,9-tricosadiene is the main component of this attractant. Of four trap types tested, Rebel and Lasiotraps attracted significantly more males than Delta and Funnel traps. Height had no effect on trap efficiency; however, males were captured earlier in the day in traps placed 2.3 m above grown than in traps placed 1.3 m above grown. Most male activity was recorded between 10 and 12 h, but captures were continuously recorded during the entire monitoring interval from 6 to 17 h.



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