Mating disruption of the jasmine moth Palpita unionalis (Lepidoptera: Pyralidae) using a two pheromone component blend: A case study over three consecutive olive growing seasons in Egypt

2007 ◽  
Vol 26 (6) ◽  
pp. 837-844 ◽  
Author(s):  
E.M. Hegazi ◽  
M.A. Konstantopoulou ◽  
P. Milonas ◽  
A. Herz ◽  
B.E. Mazomenos ◽  
...  
Keyword(s):  
Mating Disruption ◽  
Pheromone Component ◽  
Growing Seasons ◽  
Lepidoptera Pyralidae ◽  
Palpita Unionalis

EFFICACY OF MATING DISRUPTION FOR CONTROLLING THE GRAPE BERRY MOTH, ENDOPIZA VITEANA (CLEMENS) (LEPIDOPTERA: TORTRICIDAE), A CASE STUDY OVER THREE CONSECUTIVE GROWING SEASONS

1993 ◽  
Vol 125 (1) ◽  
pp. 1-9 ◽  
Author(s):  
R.M. Trimble
Keyword(s):  
Sex Pheromone ◽  
Mating Disruption ◽  
Grape Berry ◽  
Relative Performance ◽  
The Other ◽  
Growing Seasons ◽  
Successive Generations ◽  
Treated Plot

AbstractSex pheromone-mediated mating disruption was used to control the grape berry moth, Endopiza viteana (Clemens) (Lepidoptera: Tortricidae), at two farms in the Niagara peninsula, Ontario, during three consecutive growing seasons, 1989 through 1991, to determine if earlier observed between-generation increases in the percentage of infested grape clusters would continue between growing seasons. The relative performance of the pheromone treatment was assessed by comparing the percentage of infested clusters in the pheromone-treated plot with the percentage of infested clusters in an adjacent, insecticide-treated plot. Although the percentage of infested clusters increased from 1.7- to 56.5-fold between successive generations in the pheromone-treated plots, there was no indication that the level of infestation at harvest affected the level of infestation the following spring. At one farm, the percentage of infested clusters was greater in the pheromone-treated than in the insecticide-treated plot during 1989, but during 1990 and 1991, the level of infestation was similar in the two plots. At the other farm, the level of infestation was from 2- to 3-fold greater in the insecticide-treated than in the pheromone-treated plot.

scholarly journals Effect of Pheromone Blend Components, Sex Ratio, and Population Size on the Mating of Cadra cautella (Lepidoptera: Pyralidae)

2020 ◽  
Vol 20 (6) ◽  
Author(s):  
Abeysinghe Mudiyanselage Prabodha Sammani ◽  
Dissanayaka Mudiyanselage Saman Kumara Dissanayaka ◽  
Leanage Kanaka Wolly Wijayaratne ◽  
William Robert Morrison
Keyword(s):  
Sex Ratio ◽  
Population Size ◽  
Management Practices ◽  
Mating Disruption ◽  
Current Knowledge ◽  
Mating Status ◽  
Cadra Cautella ◽  
Synthetic Chemicals ◽  
Population Sizes ◽  
Lepidoptera Pyralidae

Abstract The almond moth Cadra cautella (Walker), a key pest of storage facilities, is difficult to manage using synthetic chemicals. Pheromone-based management methods remain a high priority due to advantages over conventional management practices, which typically use insecticides. Cadra cautella females release a blend of pheromone including (Z, E)-9,12-tetradecadienyl acetate (ZETA) and (Z)-9-tetradecadien-1-yl acetate (ZTA). The effect of these components on mating of C. cautella and how response varies with the population density and sex ratio remain unknown. In this study, the mating status of C. cautella was studied inside mating cages under different ratios of ZETA and ZTA diluted in hexane and at different population sizes either with equal or unequal sex ratio. The lowest percentage of mated females (highest mating disruption [MD] effects), corresponding to roughly 12.5%, was produced by a 5:1 and 3.3:1 ratio of ZETA:ZTA. Populations with equal sex ratio showed the lowest percentage of mated females, at 20% and 12.5% under lower and higher density, respectively. The next lowest percentage of mated females was produced when the sex ratio was set to 1: 2 and 2:1 male:female, with just 25% and 22.5% of moths mated, respectively. This study shows that mating status of C. cautella is influenced by ZETA:ZTA ratio, sex ratio, and population size. This current knowledge would have useful implications for mating disruption programs.

scholarly journals Impact of Climate Change on Production and Productivity: A Case Study of Maize Research and Development In Nepal

2010 ◽  
Vol 11 ◽  
pp. 59-69 ◽  
Author(s):  
Janak Lal Nayava ◽  
Dil Bahadur Gurung
Keyword(s):  
Climate Change ◽  
Maize Yield ◽  
Maximum Temperature ◽  
Rainfall Distribution ◽  
Maize Production ◽  
Growing Seasons ◽  
Agriculture And Environment ◽  
Present Rate ◽  
Annual Maximum Temperature

The relation between climate and maize production in Nepal was studied for the period 1970/71-2007/08. Due to the topographical differences within north-south span of the country, Nepal has wide variety of climatic condition. About 70 to 90% of the rainfall occurs during summer monsoon (June to September) and the rest of the months are almost dry. Maize is cultivated from March to May depending on the rainfall distribution. Due to the availability of improved seeds, the maize yield has been steadily increasing after 1987/1988. The national area and yield of maize is estimated to be 870,166ha and 2159kg/ha respectively in 2007/08. The present rate of annual increase of temperature is 0.04°C in Nepal. Trends of temperature rise are not uniform throughout Nepal. An increase of annual temperature at Rampur during 1968-2008 was only 0.039°C. However, at Rampur during the maize growing seasons, March/April - May, the trend of annual maximum temperature had not been changed, but during the month of June and July, the trend of increase of maximum temperature was 0.03°C to 0.04°C /year.Key words: Climate-change; Global-warming; Hill; Mountain; Nepal; TaraiThe Journal of AGRICULTURE AND ENVIRONMENT Vol. 11, 2010Page: 59-69Uploaded Date: 15 September, 2010

SYNTHETIC PHEROMONES DISRUPT MALE DIORYCTRIA SPP. MOTHS IN A LOBLOLLY PINE SEED ORCHARD

2000 ◽  
Vol 132 (3) ◽  
pp. 345-351 ◽  
Author(s):  
Gary L. DeBarr ◽  
James L. Hanula ◽  
Christine G. Niwa ◽  
John C. Nord
Keyword(s):  
Loblolly Pine ◽  
Large Scale ◽  
Sex Pheromones ◽  
Mating Disruption ◽  
Seed Orchard ◽  
Control Treatment ◽  
Tetradecenyl Acetate ◽  
Lepidoptera Pyralidae ◽  
Trap Catches ◽  
Large Scale Tests

AbstractSynthetic sex pheromones released in a loblolly pine, Pinus taeda L. (Pinaceae), seed orchard interfered with the ability of male coneworm moths, Dioryctria Zeller spp. (Lepidoptera: Pyralidae), to locate traps baited with sex pheromones or live females. Pherocon 1C® traps baited with synthetic pheromones or live conspecific females were hung near the center of two 1.2-ha circular plots during emergence of Dioryctria amatella (Hulst), Dioryctria disclusa (Heinrich), and Dioryctria merkeli (Mutuura and Munroe). In a paired design, trap catches for the mating-disruption treatment with synthetic pheromone dispensers consisting of three polyvinyl chloride rods placed in every tree were compared with the control treatment. Treatments were alternated at intervals of 2–3 d. Trap catches of D. amatella were reduced by 91% when plots were treated with 2.5 g/ha of Z-11-hexadencenyl acetate. Catches were reduced by 99.5% for D. disclusa and by 97% for D. merkeli when plots were treated with 12.5 g/ha of Z-9-tetradecenyl acetate, whereas catches of D. amatella were unaffected by this mating-disruption treatment. Daily disappearance of Z-9-tetradecenyl acetate from the dispensers averaged 0.46 g/ha or less. Manually placing dispensers on nylon lines in the tops of trees was an effective method for releasing synthetic Dioryctria pheromones in the orchard. These data suggest it may be feasible to prevent mating of Dioryctria spp. in pine seed orchards by using synthetic pheromones for mating disruption, but large-scale tests will be required to demonstrate cone protection.

Is sterile insect technique’s efficiency affected by pomegranate variety in mixed cultivars? New insights from a case study on the carob moth, Apomyelois ceratoniae Zeller (Lepidoptera: Pyralidae) in Iran

2017 ◽  
Vol 52 (2) ◽  
pp. 210-220 ◽  
Author(s):  
Mahmoud Soufbaf ◽  
Bahare Salehi ◽  
Nadia Kalantarian ◽  
Ali Hosein Zanganeh ◽  
Hadi Fathollahi ◽  
...  
Keyword(s):  
Lepidoptera Pyralidae ◽  
Carob Moth

First Report of Mating Disruption With an Aggregation Pheromone: A Case Study With Tetropium fuscum (Coleoptera: Cerambycidae)

2017 ◽  
Vol 110 (3) ◽  
pp. 1078-1086 ◽  
Author(s):  
Jon Sweeney ◽  
Peter J. Silk ◽  
Marc Rhainds ◽  
Wayne MacKay ◽  
Cory Hughes ◽  
...  
Keyword(s):  
Aggregation Pheromone ◽  
Mating Disruption ◽  
First Report ◽  
Tetropium Fuscum

Mating-Disruption Trials for Control of Mediterranean Flour Moth, Ephestia kuehniella Zeller (Lepidoptera: Pyralidae), in Traditional Flour Mills

2013 ◽  
Vol 76 (3) ◽  
pp. 456-461 ◽  
Author(s):  
P. TREMATERRA ◽  
G. SPINA
Keyword(s):  
Mating Disruption ◽  
Hazard Analysis ◽  
Control Point ◽  
Experimental Period ◽  
Field Trials ◽  
Ephestia Kuehniella ◽  
Population Fluctuations ◽  
Critical Control Point ◽  
Lepidoptera Pyralidae ◽  
Mediterranean Flour Moth

In the present work, 3 years of field trials (from 2007 to 2009) were carried out to evaluate use of the pheromone (9Z,12E)-tetradecadienyl acetate (TDA) for mating disruption (MD) of the Mediterranean flour moth, Ephestia kuehniella Zeller. Dispensers containing the pheromone TDA were placed in two traditional flour mills. Pheromone-baited funnel traps were used to monitor the population fluctuations of E. kuehniella males throughout the entire experimental period; female oviposition was assessed by placement of petri cups containing wheat germ–semolina flour bait. According to our results, the use of MD dispensers does not interfere completely with the reproduction of E. kuehniella. However, looking at the overall data, there was a significant reduction in both adults and larvae in treated mills after the MD application. According to hazard analysis and critical control point procedures, treatment should be accompanied by general cleaning of the facilities, including corners and inside machinery, where insects can hide and reproduce. In integrated pest management programs, the use of mating disruption can lead to a drastic reduction in the need for chemical treatments, with improvement in food quality.

Mating disruption for control of Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae) in dried beans

2011 ◽  
Vol 47 (3) ◽  
pp. 216-221 ◽  
Author(s):  
Charles S. Burks ◽  
John R. McLaughlin ◽  
James R. Miller ◽  
David G. Brandl
Keyword(s):  
Mating Disruption ◽  
Plodia Interpunctella ◽  
Lepidoptera Pyralidae
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