scholarly journals Minor Components Play an Important Role in Interspecific Recognition of Insects: A Basis to Pheromone Based Electronic Monitoring Tools for Rice Pests

Insects ◽  
2018 ◽  
Vol 9 (4) ◽  
pp. 192 ◽  
Author(s):  
Qing-Hua Chen ◽  
Feng Zhu ◽  
Zhihua Tian ◽  
Wan-Min Zhang ◽  
Rong Guo ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Electronic Monitoring ◽  
Interspecific Interactions ◽  
Minor Component ◽  
Minor Components ◽  
Scirpophaga Incertulas ◽  
Rice Pests ◽  
Pheromone Trapping ◽  
Lepidopteran Species ◽  
Pheromone Blend

Several lepidopteran species share the same pheromone blend consisting of (Z)-11-hexadecenal (Z11-16:Ald) and (Z)-9-hexadecenal (Z9-16:Ald) at different ratios and active doses. In rice pest Chilo suppressalis, (Z)-11-hexadecenol, (Z11-16:OH) and octadecanal (18:Ald) were identified as minor components in the pheromone gland of female moths, and these components were previously not considered as part of the sex pheromone of C. suppressalis. Z11-16:Ald, Z9-16:Ald and (Z)-13-octadecenal (Z13-18:Ald) frequently trapped other lepidopteran species, such as rice pests Scirpophaga incertulas and Mythimna separate, corn and vegetable pests Helicoverpa armigera in the field, suggesting a lack of specificity in the pheromone blend. Our data showed that the minor component Z11-16:OH did not have a synergistic effect on the attractiveness of the blend to C. suppressalis; however, pheromone mixtures containing Z11-16:OH failed in trapping male H. armigera moths. We confirmed the identity and specificity of the C. suppressalis sex pheromone and demonstrated that Z11-16:OH plays a key role in the reproductive isolation of C. suppressalis, M. separata, and H. armigera moths, and a similar role of Z9-18:Ald in that of S. incertulas and C. suppressalis. This phenomenon could be more widely applicable to interspecific interactions in the pheromone communication between insects, which is crucial to developing the electronic automatic counting device for automatically monitoring the pest population by pheromone trapping based on its species specificity.

SENSITIVITY OF BLUEBERRY LEAFTIER MOTHS (LEPIDOPTERA: TORTRICIDAE) (KEARFOTT) TO THEIR OWN SEX PHEROMONE: MATING BIOASSAY, ELECTROANTENNOGRAM, AND TRAP ATTRACTANCY STUDIES

1991 ◽  
Vol 123 (1) ◽  
pp. 231-238 ◽  
Author(s):  
B.M. Ponder ◽  
W.D. Seabrook
Keyword(s):  
Sex Pheromone ◽  
Release Rate ◽  
Minor Component ◽  
Female Sex Pheromone ◽  
Release Rates ◽  
Female Response ◽  
Tetradecenyl Acetate ◽  
Natural Pheromone ◽  
Pheromone Blend ◽  
Source Concentration

AbstractA mating suppression bioassay, an electroantennogram study, and a lure attractancy study demonstrated the sensitivity of the Croesia curvalana (Kft.) moth to the female sex pheromone. Mating suppression of 98% was achieved with source concentrations of 30 μg of either (E)- and (Z)-11-tetradecenal (95:5) or the natural pheromone blend of (E)- and (Z)-11-tetradecenal (90:10) + (E)- and (Z)-11-tetradecenyl acetate (85:15) (aldehyde:acetate = 9:1), and was 60% with a source concentration of 0.6 μg. Source concentrations of the minor component acetate, ranging from 15 to 0.6 μg, produced mating suppressions of from 78 to 38%. Male antennae responded to source concentrations of 2 × 10−10 mg (E)- and (Z)-11-tetradecenal (90:10) and antennal saturation occurred at 2 × 10−4 mg. Little female response was found at any age. Polyvinyl chloride lures releasing 1–2 ng/h captured males at approximately the same rate as did virgin moths. Release rates as low as 8 ng/h reduced trap capture from the 4 ng/h release rate found to be most effective under prevailing environmental conditions using Pherocon 1C traps. Results from these studies suggest C. curvalana could be a candidate for pheromone-based field mating suppression.

Secondary Sex Pheromone Components of Choristoneura murinana Hb. (Lepidoptera: Tortricidae)

1988 ◽  
Vol 43 (11-12) ◽  
pp. 918-928 ◽  
Author(s):  
Ernst Priesner ◽  
Hermann Bogenschütz ◽  
Christer Löfstedt
Keyword(s):  
Receptor Cell ◽  
Minor Component ◽  
Field Trapping ◽  
Minor Components ◽  
Inhibitory Effects ◽  
Single Receptor ◽  
Electrophysiological Recordings ◽  
Pheromone Components ◽  
Pheromone Blend

The alkenyl acetates E9-12:Ac, Δ11-12:Ac and Zll-14:Ac were identified as minor components of the C. murinana female pheromone blend by chemical analyses of volatile pheromone gland constituents and potential pheromone precursors, electrophysiological recordings from single receptor cells, and field trapping tests. Gland washes from virgin females contained these compounds at 3%, 10% and 5%. respectively, the amount of the primary pheromone component Z9-12:Ac already reported. A 0.3% addition of either Δ11 - 12 : Ac or Z11-14:Ac significantly raised trap captures over Z9-12:Ac alone and a 3-30% addition of either minor component revealed maximum captures, not increased further by including both synergists within the same blend. A functional role of the E9-12: Ac could not be established during this study; 3% of it when combined with the pheromonal ratio mixture of the three other components tended to increase trap captures further whereas in various other mixture combinations the E9-12:Ac strongly reduced captures. These inhibitory effects were more pronounced with attractant blends based on Δ11-14:Ac rather than Δ11-12:Ac. Each blend component activated its own type of antennal receptor cell.

The Potential for Genetic Manipulation of the Redbanded Leafroller Moth Sex Pheromone Blend

1986 ◽  
pp. 263-272 ◽  
Author(s):  
Wendell L. Roelofs ◽  
Jia-Wei Du ◽  
Charles Linn ◽  
Thomas J. Glover ◽  
Louis B. Bjostad
Keyword(s):  
Sex Pheromone ◽  
Genetic Manipulation ◽  
Redbanded Leafroller ◽  
Sex Pheromone Blend ◽  
Pheromone Blend

scholarly journals Use of mating disruption for control of New Zealand leafrollers in apple orchards

2011 ◽  
Vol 64 ◽  
pp. 215-221 ◽  
Author(s):  
J.T.S. Walker ◽  
D.J. Rogers ◽  
P.L. Lo ◽  
D.M. Suckling ◽  
A.M. El-Sayed ◽  
...  
Keyword(s):  
New Zealand ◽  
Mating Disruption ◽  
Virgin Female ◽  
Pheromone Traps ◽  
Apple Orchards ◽  
Pheromone Trapping ◽  
Fruit Damage ◽  
Lightbrown Apple Moth ◽  
Pheromone Dispensers ◽  
Pheromone Blend

Leafrollers are important pests of apples and infested fruit can result in rejection of export consignments Leafroller mating disruption using a pheromone blend with activity against three species was examined in 12 Hawkes Bay orchards over two seasons (200910 and 201011) Pheromone dispensers (600/ha) and a single insecticide were applied to trees in early November and subsequent insecticide use was based on leafroller pheromone trapping and thresholds The pheromone blend substantially suppressed mating of virgin female lightbrown apple moth in treated orchards and reduced male catch in pheromone traps by up to 98 compared with the season prior to implementation Insecticide use for leafroller control decreased accordingly from 2127 insecticides per block in 2008/09 to 1018 in 2010/11 Leafroller control using mating disruption was acceptable fruit damage varied from 03 to 016 and no leafroller larvae were found on fruit in both field assessments and phytosanitary inspections of packed cartons

scholarly journals Identification of Possible Sex Pheromone of the Yellow Stem Borer Moth, Scirpophaga incertulas (WALKER)(Lepidoptera : Pyralidae)

1985 ◽  
Vol 20 (3) ◽  
pp. 357-359 ◽  
Author(s):  
Sadahiro TATSUKI ◽  
Hajime SUGIE ◽  
Kenji USUI ◽  
Jun-ichi FUKAMI ◽  
Muhamad Hoedaya SUMARTAPUTRA ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Stem Borer ◽  
Scirpophaga Incertulas ◽  
Yellow Stem Borer ◽  
Lepidoptera Pyralidae

A plant volatile alters the perception of sex pheromone blend ratios in a moth

2020 ◽  
Vol 206 (4) ◽  
pp. 553-570 ◽  
Author(s):  
Antoine Hoffmann ◽  
Thomas Bourgeois ◽  
Alicia Munoz ◽  
Sylvia Anton ◽  
Jeremy Gevar ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Plant Volatile ◽  
Blend Ratios ◽  
Sex Pheromone Blend ◽  
Pheromone Blend

Isolation, identification, synthesis, and bioefficacy of female Diacrisia obliqua (Arctiidae) sex pheromone blend. An Indian agricultural pest

2001 ◽  
Vol 73 (7) ◽  
pp. 1157-1162 ◽  
Author(s):  
J. S. Yadav ◽  
M. Y. Valli ◽  
A. R. Prasad
Keyword(s):  
Sex Pheromone ◽  
Female Sex Pheromone ◽  
Wittig Olefination ◽  
Pheromone Components ◽  
Diacrisia Obliqua ◽  
Seed Crops ◽  
Key Steps ◽  
Sex Pheromone Blend ◽  
Pheromone Blend ◽  
Oil Seed Crops

Diacrisia obliqua is a polyphagous pest especially on oil seed crops. Adult female sex pheromone blend consists of five pheromone components, which include (3Z,6Z)-cis-9,10-epoxyl,3,6-henicosatriene and (3Z,6Z)-cis-9,10-epoxy3,6-henicosadiene. Synthesis of these enantiomers was achieved through alkylative epoxide rearrangement and stereoselective Wittig olefination reactions as key steps. Bioefficacy experiments both at laboratory and minifield were very positive.

SEX PHEROMONE COMPONENTS OF ENARMONIA FORMOSANA (LEPIDOPTERA: TORTRICIDAE)

1999 ◽  
Vol 131 (1) ◽  
pp. 85-92 ◽  
Author(s):  
Crawford McNair ◽  
Gerhard Gries ◽  
Regine Gries
Keyword(s):  
Sex Pheromone ◽  
Field Experiments ◽  
Mass Trapping ◽  
Binary Blend ◽  
Heterospecific Male ◽  
Electroantennographic Detection ◽  
Cross Attraction ◽  
Pheromone Glands ◽  
Pheromone Blend ◽  
Enarmonia Formosana

Abstract(E)-9-Dodecenyl acetate (E9-12:OAc) and (Z)-9-dodecenyl acetate (Z9-12:OAc) are major components of the sex pheromone of the cherry bark tortrix (CBT), Enarmonia formosana (Scopoli), in British Columbia. The compounds were identified in extracts of female pheromone glands by coupled gas chromatographic – electroantennographic detection (GC–EAD) and coupled GC – mass spectrometry. In field experiments, traps baited with E9-12:OAc or Z9-12:OAc singly were unattractive to male CBT, but in combination at ratios of 50:50 or 40:60 captured numerous males. Increasing quantities of this two-component pheromone blend resulted in increasing captures of male CBT. This binary blend at a 10-mg dose caught more CBT males that did caged virgin CBT females. Eight other EAD-active acetates identified in extracts of pheromone glands failed to enhance attractiveness of the pheromone blend. These compounds may serve to reduce cross-attraction of heterospecific male moths or may play a role in courtship behaviour. Formulations of synthetic pheromone are being evaluated for management of the CBT using mass trapping or disorientation of male CBT moths.

Sign in / Sign up

Export Citation Format

Share Document