Kairomone Attractant for the Leafmining Fly, Liriomyza bryoniae (Diptera, Agromyzidae)

2008 ◽  
Vol 63 (7-8) ◽  
pp. 615-618 ◽  
Author(s):  
Vincas Bu̅da ◽  
Sandra Radžiute
Keyword(s):  
Methyl Salicylate ◽  
Sticky Trap ◽  
Mass Trapping ◽  
Aluminium Foil ◽  
Simultaneous Presence ◽  
Closed Area ◽  
Yellow Traps ◽  
Behavioural Reaction ◽  
Liriomyza Bryoniae ◽  
Trap Bait

A field test carried out in an industrial greenhouse in Lithuania revealed the attractiveness of synthetic methyl salicylate (MeSa) towards an economically important leafmining tomato pest, Liriomyza bryoniae (Kaltenbach) (Diptera, Agromyzidae). The behavioural reaction of the flies depended very much on the simultaneous presence of both olfactory and visual stimuli. The attractiveness depended on the colour of a sticky trap: MeSa attracted significantly more flies (ca. 2.2 times) when placed in yellow traps than in aluminium foil colour ones, when catches in such traps were compared to a corresponding control. L. bryoniae is the first species within the Agromyzidae family attracted by MeSa. The attractant was attributed to kairomones, as the compound is known as a plant-produced volatile. MeSa can be an effective extra-tool for increasing the attractiveness of traps. It should be evaluated in future whether such trap/bait combination is effective for the mass trapping of L. bryoniae leafminers in greenhouses (closed area).

scholarly journals Efficacy of Different Coloured Sticky Traps Against Thrips of Chilli

2020 ◽  
Vol 8 (2) ◽  
pp. 187-190
Author(s):  
M.M. Hossain ◽  
K.M. Khalequzzaman ◽  
M.S. Alam ◽  
M.T.R. Mondal ◽  
M.M. Islam
Keyword(s):  
Field Experiment ◽  
Sticky Trap ◽  
Color Preference ◽  
Research Centre ◽  
Mass Trapping ◽  
Blue Color ◽  
Rabi Season ◽  
Beneficial Insects ◽  
Scirtothrips Dorsalis ◽  
Trap Color

The field experiment was conducted at Spices Research Centre, Shibganj, Bogura, Bangladesh during Rabi season of 2017-18 to study the color preference of Scirtothrips dorsalis in chilli. The treatments were T1= Blue trap @40 trap/ha; T2= Yellow trap @40 trap/ha; T3= White trap @40 trap/ha; T4= Green trap @40 trap/ha and T5= Pink trap @40 trap/ha.  Among the color traps used, at 35 days after installation (DAI) of trap blue color attracted highest (8.44 thrips/ sq. inch area of trap) number of S. dorsalis adults followed by white (5.43 thrips/ sq. inch area of trap), yellow (4.30 thrips/ sq. inch area of trap), green (3.52 thrips/ sq. inch area of trap) and pink (3.40 thrips/ sq. inch area of trap) color. Blue coloured sticky trap also attracted comparatively a smaller number of beneficial insects and can be used for relative estimate of S. dorsalis population and also for monitoring and mass trapping as a component of IPM program. Int. J. Appl. Sci. Biotechnol. Vol 8(2): 187-190

scholarly journals PREFERENSI HAMA Thrips sp. (Thysanoptera : Thripidae) TERHADAP PERANGKAP BERWARNA PADA TANAMAN CABAI

EUGENIA ◽  
2018 ◽  
Vol 23 (3) ◽  
Author(s):  
C. S. Rante ◽  
G. S.J. Manengkey
Keyword(s):  
Block Design ◽  
Sticky Trap ◽  
Average Population ◽  
Randomized Block Design ◽  
Yellow Traps

ABSTRACT The purpose of this research is to know the interest of Thrips sp. on various colored traps. This research has been conducted on farmers' land in Kakaskasen II Village, Tomohon City. The study used Randomized Block Design (RBD) with the following treatment: (A) pink trap; (B) yellow trap; (C) blue trap; (D) green trap and (E) white trap.  Each treatment was replication three times. The results showed that Thrips sp. more interested in yellow traps than green, blue, white and pink traps. Average population of Thrips sp. fluctuates at first to seventh observations. The highest population was found in the yellow trap, the second observation was 134.67 and the fifth observation was 118.33.Keywords :  Thrips sp., Thysanoptera, Thripidae, color sticky trap   ABSTRAK Tujuan penelitian adalah untuk mengetahui ketertarikan dari hama Thrips sp. pada berbagai perangkap berwarna.  Penelitian ini telah dilaksanakan pada lahan petani di Desa Kakaskasen II, Kota Tomohon.  Penelitian menggunakan Rancangan Acak Kelompok (RAK) dengan perlakuan sebagai berikut : (A) Perangkap berwarna merah muda; (B) Perangkap berwarna kuning; (C) Perangkap berwarna biru; (D) Perangkap berwarna hijau dan (E) Perangkap berwarna putih.  Masing-masing perlakuan diulang tiga kali.  Hasil penelitian menunjukkan bahwa hama Thrips sp. lebih tertarik pada perangkap berwarna kuning dibandingkan dengan perangkap warna hijau, biru, putih dan merah muda.  Rataan populasi Thrips sp. berfluktuasi pada pengamatan pertama sampai ketujuh.  Populasi tertinggi dijumpai pada perangkap berwarna kuning yakni pada pengamatan kedua (134,67 ekor) dan pengamatan kelima (118,33 ekor).Kata kunci :  Thrips sp., Thysanoptera, Thripidae, perangkap berwarna

A MULTIPLE FUNNEL TRAP FOR SCOLYTID BEETLES (COLEOPTERA)

1983 ◽  
Vol 115 (3) ◽  
pp. 299-302 ◽  
Author(s):  
B. S. Lindgren
Keyword(s):  
Mountain Pine Beetle ◽  
High Efficiency ◽  
Sticky Trap ◽  
Mass Trapping ◽  
Ambrosia Beetles ◽  
Sticky Traps ◽  
Research Survey ◽  
Pine Beetle ◽  
Funnel Trap ◽  
Vertically Aligned

AbstractThe multiple funnel trap, an efficient, collapsible, non-sticky trap for scolytid beetles, consists of a series of vertically aligned funnels with a collecting jar at the bottom. The trap compared favorably with sticky traps and Scandinavian drainpipe traps for three species of ambrosia beetles and the mountain pine beetle. Minimum maintenance required for this trap allows for high efficiency in pheromone-based research, survey, and mass trapping of scolytid beetles.

scholarly journals Can the Addition of Odor and Visual Targets Enhance Attraction of the Asian Citrus Psyllid (Hemiptera: Liviidae) to Sticky Traps?

2020 ◽  
Vol 113 (5) ◽  
pp. 2563-2567 ◽  
Author(s):  
Arjun Khadka ◽  
Sandra A Allan ◽  
Daniel Cho ◽  
Emma N I Weeks
Keyword(s):  
Methyl Salicylate ◽  
Trapping Efficiency ◽  
Citrus Greening ◽  
Asian Citrus Psyllid ◽  
Citrus Industry ◽  
Sticky Traps ◽  
Yellow Traps ◽  
Candidatus Liberibacter ◽  
Visual Targets ◽  
Yellow Sticky Traps

Abstract Asian citrus psyllid, Diaphorina citri Kuwayama, negatively impacts the citrus industry as it transmits Candidatus Liberibacter spp., the causal agent of citrus greening. Monitoring D. citri population levels is critical for management of vectors and citrus greening and is usually through use of yellow sticky traps. In our study, use of odors, odor blends, and visual targets were evaluated to determine whether attraction to yellow sticky traps could be improved. Methyl salicylate consistently increased D. citri attraction to decoy yellow but not to other yellow or yellow/green traps. Addition of a visual target did not enhance attraction to sticky traps. While several chemical blends were evaluated, they did not increase psyllid attraction to decoy yellow traps. The increased attraction to traps with methyl salicylate is promising and may contribute to trapping efficiency under field conditions.

scholarly journals Attributes of Yellow Traps Affecting Attraction of Diaphorina citri (Hemiptera: Liviidae)

Insects ◽  
2020 ◽  
Vol 11 (7) ◽  
pp. 452
Author(s):  
Sandra A. Allan ◽  
Justin George ◽  
Lukasz L. Stelinski ◽  
Stephen L. Lapointe
Keyword(s):  
Visual Cues ◽  
Light Emitting Diodes ◽  
Sticky Trap ◽  
Diaphorina Citri ◽  
Yellow Light ◽  
Green Pigment ◽  
Light Emitting ◽  
Yellow Paint ◽  
Uv Reflectance ◽  
Yellow Traps

Laboratory assays were conducted to evaluate responses of Diaphorina citri to various aspects of visual cues associated with traps in an effort to improve trap effectiveness. Addition of white or UV violet but not yellow light-emitting diodes (LEDs) increased attraction to standard yellow adhesive traps moderately (11–17%), with no difference in attraction between white or UV violet LEDs. Addition of a black border on yellow traps enhanced collections. However, there were no differences between attraction to black patterns on traps. Comparisons were made between different commercial paints, some with UV-reflecting properties or fluorescence. A yellow paint with UV reflectance, used for painting bird decoys (decoy yellow), was more attractive than the standard yellow Olson sticky trap. Addition of white or green pigment to increase intensity or enhance green reflectance, respectively, did not increase attraction. Alteration of reflectance of Olson traps with addition of UV-reflecting or fluorescent pigments did not enhance attraction of D. citri. In field comparisons, decoy yellow and fluorescent yellow sticky traps were more attractive to D. citri than Olson yellow.

scholarly journals Design and placement of synthetic sex pheromone traps for cacao mirids in Ghana

2018 ◽  
Vol 38 (02) ◽  
pp. 122-131 ◽  
Author(s):  
J.E. Sarfo ◽  
C.A.M. Campbell ◽  
D.R. Hall
Keyword(s):  
Sex Pheromone ◽  
Sticky Trap ◽  
Mass Trapping ◽  
Pheromone Traps ◽  
Water Trap ◽  
Sahlbergella Singularis ◽  
Sex Pheromone Traps ◽  
Pheromone Components ◽  
Synthetic Sex Pheromone ◽  
Large Water

AbstractCacao mirids (Sahlbergella singularis,Distantiella theobromaandBryocoropsis laticollis) were captured in pheromone traps releasing a 2:1 blend of the sex pheromone components of the two first named species in a series of five experiments on cacao (Theobroma cacao) plantations in Ghana. A total of 835 cacao mirids were caught, all male, 95% of which wereS. singularis, 3%D. theobromaand 2%B. laticollis.Two sticky trap and two water trap designs made from locally available materials were as effective for capturingS. singularisand total mirids as the best sticky trap from previously reported studies. Coating the outer surface of a large water trap with sticker increased the catch 4.4×, and 2.7× for a cylindrical sticky trap. Sticker on the outside of the water trap also increased the inside catch ofS. singularisby 76% and total mirids by 71%. The numbers ofS. singularisandD. theobromatrapped increased with increasing trap elevation and were highest around canopy level. Those traps caught an average 12× more mirids than traps at 1.8 m, the height recommended currently. Therefore, large water traps coated with sticker and aligned with the cacao canopy should raise the current capture rates of pheromone traps for cacao mirids about 50×, which may be sufficient for effective pest management by mass trapping without synthetic insecticides.

Subtle Impact of Akt1 and Akt3 on Exploratory Behavior in Gene Targeted Mice

2015 ◽  
Vol 223 (3) ◽  
pp. 173-180 ◽  
Author(s):  
Christina Leibrock ◽  
Michael Hierlmeier ◽  
Undine E. Lang ◽  
Florian Lang
Keyword(s):  
Forced Swimming Test ◽  
Open Field Test ◽  
Wild Type ◽  
Average Speed ◽  
Closed Area ◽  
Light Area ◽  
Swimming Test ◽  
The Impact ◽  
Center Area ◽  
Dark Transition

Abstract. The present study explored the impact of Akt1 and Akt3 on behavior. Akt1 (akt1-/-) and Akt3 (akt3-/-) knockout mice were compared to wild type (wt) mice. The akt1-/- mice, akt3-/- mice, and wt mice were similar in most parameters of the open-field test. However, the distance traveled in the center area was slightly but significantly less in akt3-/- mice than in wt mice. In the light/dark transition test akt1-/- mice had significantly lower values than wt mice and akt3-/- mice for distance traveled, number of rearings, rearing time in the light area, as well as time spent and distance traveled in the entrance area. They were significantly different from akt3-/- mice in the distance traveled, visits, number of rearings, rearing time in the light area, as well as time spent, distance traveled, number of rearings, and rearing time in the entrance area. In the O-maze the time spent, and the visits to open arms, as well as the number of protected and unprotected headdips were significantly less in akt1-/- mice than in wt mice, whereas the time spent in closed arms was significantly more in akt1-/- mice than in wt mice. Protected and unprotected headdips were significantly less in akt3-/- mice than in wt mice. In closed area, akt3-/- mice traveled a significantly larger distance at larger average speed than akt1-/- mice. No differences were observed between akt1-/- mice, akt3-/- mice and wt-type mice in the time of floating during the forced swimming test. In conclusion, akt1-/- mice and less so akt3-/ mice display subtle changes in behavior.

Kinetic Study of the Effect of Heparin on the Amidase Activity of Trypsin, Plasmin and Urokinase

1983 ◽  
Vol 49 (03) ◽  
pp. 199-203 ◽  
Author(s):  
V M Yomtova ◽  
N A Stambolieva ◽  
B M Blagoev
Keyword(s):  
Kinetic Study ◽  
Active Center ◽  
Simultaneous Presence ◽  
Amidase Activity ◽  
Competitive Inhibitors ◽  
Uncompetitive Inhibitor

SummaryIt was found that the effect of heparin on the amidase activity of urokinase (E C 3.4.21.31), plasmin (E C 3.4.21.7) and trypsin (E C 3.4.21.4) depended on the substrate used. No effect of heparin on the amidase activity of urokinase and trypsin was observed when Pyro Glu-Gly-Arg-p-nitroanilide (S-2444) and α-N-acetyl-L-lysine-p-nitroanilide (ALNA) were used as substrates. Heparin acted as a uncompetitive inhibitor of trypsin (Ki = 1.2×10-6 M), plasmin (Ki = 4.9×10-6 M) and urokinase (Ki = l.0×10-7 M) when Bz-Phe-Val-Arg-p-nitroanilide (S-2160), H-D-Val-Leu-Lys-p-nitroanilide (S-2251) and plasminogen, respectively, were used as substrates. These results, as well as the data obtained by studying the effect of the simultaneous presence of heparin and competitive inhibitors suggest that although heparin is not bound at the active center of these enzymes, it may influence the effectivity of catalysis.

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