scholarly journals Selectivity of the oriental fruit moth sex pheromone trap in peach and apricot orchards

2010 ◽  
Vol 16 (2) ◽  
Author(s):  
K. Hári ◽  
B. Pénzes
Keyword(s):  
Sex Pheromone ◽  
Chemical Control ◽  
Pheromone Trap ◽  
External Morphology ◽  
Oriental Fruit Moth ◽  
Pheromone Traps ◽  
Sex Pheromone Traps ◽  
Fruit Orchards ◽  
Trap Catches ◽  
Male Genital

One of the most important pests of the stone fruit orchards is the oriental fruit moth (Grapholitha 1110/esta B.). Chemical control targeted against the young larvae is the most effective way of protection. so the ti ming of treatments has to be based on the observation of emergence. Emergence may be monitored with sex pheromone traps. It is already known from former publications, that the traps for oriental fruit moth are also effective in the case of the plum moth (Grapholitha f1111ebra11a Tr.), which external morphology is very similar to the oriental fruit moth. As the emergence of the oriental fruit moth in peach and apricot orchards has not been observed in detaib in Hungary, we started a s1Udy in this field. Our aim was to measure the selectivity of the sex pheromone traps. On the basis of examining more than 5000 males caught and the investigation of male genital ia. it could be established that the pheromone traps. Csalomon and Deltastop, for oriental fruit moth, caught the plum moth in the same ratio. The ratio of the oriental fruit moth and the plum moth trapped in the peach orchards was I: I . while in the apricot orchards the number of the caught plum moth males was seven times as many as that of the oriental fruit moths. Consequently, it can be established that data based on oriental fruit moth trap catches can not be used without additional investigations of genitalia for the prediction of larval hatch. The selectivity of the plum moth trap. used as a control. was acceptable in both orchards.

scholarly journals Detection of Cocoa Pod Borer Infestation Using Sex Pheromone Trap and its Control by Pod Wrapping

2017 ◽  
Vol 21 (1) ◽  
pp. 30
Author(s):  
Dian Rahmawati ◽  
Fransiscus Xaverius Wagiman ◽  
Tri Harjaka ◽  
Nugroho Susetya Putra
Keyword(s):  
Sex Pheromone ◽  
Control Measure ◽  
Warning System ◽  
Pheromone Trap ◽  
Effective Control ◽  
Pheromone Traps ◽  
Seed Damage ◽  
Pest Infestation ◽  
Pod Borer ◽  
Sex Pheromone Traps

Cocoa pod borer (CPB), Conopomorpha cramerella Snellen (Lepidoptera: Gracillariidae) is a major pest of cocoa. Detection of the pest infestation using sex pheromone traps in the early growth and development of cocoa pods is important for an early warning system programme. In order to prevent the pest infestation the young pods were wrapped with plastic bags. A research to study the CPB incidence was conducted at cocoa plantations in Banjarharjo and Banjaroya villages, District of Kalibawang; Hargotirto and Hargowilis villages, District of Kokap; and Pagerharjo village, District of Samigaluh, Yogyakarta. The experiments design used RCBD with four treatments (sex pheromone trap, combination of sex pheromone trap and pod wrapping, pod wrapping, and control) and five replications. As many as 6 units/ha pheromone traps were installed with a distance of 40 m in between. Results showed that one month prior to the trap installation in the experimental plots there were ripen cocoa pods as many as 9-13%, which were mostly infested by CPB. During the time period of introducting research on August to Desember 2016 there was not rambutan fruits as the CPB host, hence the CPB resource was from infested cocoa pods. The CPB moth trapped as many as 0−7 (1.13 ± 0.14) moths/6 traps/12 observations. The seed damage due to CPB larvae in the pheromone trap treatments (23.98%) was relatively similar with the control (20.25%). Seed damage rate in combination treatment of pheromone trap and pod wrapping (0.59%) was relatively the same with the pod wrapping (0.20%). The pheromone trap was more usefull for monitoring tool rather than for control, meanwhile pod wrapping was an effective control measure of CPB. IntisariPenggerek Buah Kakao (PBK), Conopomorpha cramerella Snellen (Lepidoptera: Gracillariidae) merupakan salah satu hama utama kakao. Deteksi serangan hama PBK dengan perangkap feromon seks pada awal pertumbuhan dan perkembangan buah kakao penting dilakukan sebagai sistem peringatan dini. Dalam upaya pencegahan serangan hama tersebut dilakukan pembrongsongan buah muda. Penelitian dilakukan di kebun kakao rakyat di Desa Banjarharjo dan Banjaroya, Kecamatan Kalibawang, Desa Hargotirto dan Hargowilis, Kecamatan Kokap, serta kebun PT Pagilaran di Desa Pagerharjo, Kecamatan Samigaluh, Yogyakarta. Percobaan dengan empat perlakuan (perangkap feromon, kombinasi perangkap feromon dan brongsong, brongsong, kontrol) dan lima ulangan menggunakan rancangan RCBD. Perangkap feromon sebanyak 6 unit/ha dipasang dengan jarak antar perangkap sekitar 40 m. Hasil percobaan menunjukkan bahwa satu bulan sebelum pemasangan perangkap terdapat buah tua sebanyak 9−13 % dan umumnya terserang PBK. Selama kajian berlangsung tidak terdapat buah rambutan sebagai inang PBK sehingga sumber PBK diduga hanya dari buah kakao yang terserang. Ngengat PBK yang tertangkap yaitu sebanyak 0−7 (1,13±0,14) ekor/6 perangkap/12 pengamatan. Intensitas kerusakan biji akibat ulat PBK pada perlakuan perangkap feromon (23,98%) relatif sama dengan kontrol (20,25%). Kerusakan biji kakao pada perlakuan kombinasi perangkap feromon dan pembrongsongan (0,59%) relatif sama dengan pembrongsongan saja (0,20%). Perangkap feromon lebih berfungsi sebagai alat monitoring daripada alat pengendalian PBK, sedangkan pembrongsongan buah merupakan teknologi pengendalian PBK yang efektif.

Research on the practical parameters of sex pheromone traps for the oriental fruit moth

2013 ◽  
Vol 69 (10) ◽  
pp. 1181-1186 ◽  
Author(s):  
Zhi-guo Zhao ◽  
Er-hua Rong ◽  
Sheng-Cai Li ◽  
Li-jun Zhang ◽  
Wei-na Kong ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Oriental Fruit Moth ◽  
Pheromone Traps ◽  
Sex Pheromone Traps

scholarly journals Appropriate Number of Sex Pheromone Trap for Monitoring Spodoptera exigua Hubner (Lepidoptera: Noctuidae) Moths on Shallot Field

2020 ◽  
Vol 24 (2) ◽  
pp. 229
Author(s):  
Dian Lestari ◽  
F. X. Wagiman ◽  
Edhi Martono
Keyword(s):  
Experimental Design ◽  
Sex Pheromone ◽  
Spodoptera Exigua ◽  
Pheromone Trap ◽  
Pheromone Traps ◽  
Single Factor ◽  
Pest Infestation ◽  
Sex Pheromone Traps ◽  
Lepidoptera Noctuidae ◽  
Single Factor Experiment

The research was carried out to determine the appropriate number of sex pheromone traps for monitoring the Spodoptera exigua moths in shallot crop which was grown in Yogyakarta Special Territory, Bantul Regency (Samas). This research was conducted in August until September 2016. Sex pheromone trap was arranged on shallot aged  3 weeks after planting. Sex pheromone trap with hexadecenat tetra asetat ingredients was placed on sticky yellow trap. This research  used RCBD experimental design with single factor experiment namely the number of trap i.e. 3, 5, 6, 8 units/2.000 m2 with sex pheromone, and  three traps without sex pheromone as control. Each treatment was repeated 5 times so  125 samples of experiments were obtained. Observation was made by counting the number of moths caught in sex pheromone trap. The result of observation was analysed  with analysis of variance (ANOVA) and DMRT α 5.0%. The results show that the appropriate number of trap to monitor the pest infestation was 3 units/2.000 m2.

Mating status of brinjal shoot and fruit borer Leucinodes orbonalis Guenee (Crambidae: Lepidoptera) male adults caught in sex pheromone traps

ENTOMON ◽  
2018 ◽  
Vol 43 (4) ◽  
pp. 291-292
Author(s):  
P. Dominic Manoj ◽  
G. Ravi ◽  
S. Sithanantham
Keyword(s):  
Sex Pheromone ◽  
Pheromone Trap ◽  
Sperm Cells ◽  
Pheromone Traps ◽  
Mating Status ◽  
Leucinodes Orbonalis ◽  
Major Constraint ◽  
Sex Pheromone Traps ◽  
Fruit Borer

Brinjal Shoot and Fruit Borer, Leucinodes orbonalis , is a major constraint in brinjal production. Investigation was taken up to understand the mating status of L. orbonalis male adults caught in sex pheromone trap. The genetalia of the male moths were examined for the presence of sperm cells and sperm bundles. The results indicated that 55.38 per cent of males caught in the trap were unmated whereas 26.15 per cent of them are partially mated and 18.40 per cent males are spent ones. The study indicated presence of L orbonalis male moths of different mating status in the pheromone catches.

The influence of behaviour modifying chemicals on mating success of the red bollworm Diparopsis castanea Hmps. (Lepidoptera, Noctuidae) in Malawi

1976 ◽  
Vol 66 (2) ◽  
pp. 279-300 ◽  
Author(s):  
R. J. Marks
Keyword(s):  
Sex Pheromone ◽  
Sexual Attraction ◽  
Practical Method ◽  
Pheromone Trap ◽  
Cotton Field ◽  
Field Cage ◽  
Synthetic Sex Pheromone ◽  
Trap Catches ◽  
First Time ◽  
Lepidoptera Noctuidae

AbstractThe synthetic sex pheromone (dicastalure) of the red bollworm of cotton, Diparopsis castanea Hmps., in Central and Southern Africa, and an inhibitor of male sexual attraction (trans-9-dodecenyl acetate,=IIA), were used in an enclosed 0·2 ha cotton field-cage to reduce successful female matings. Over one month dicastalure at 21·0 and 42·3 g/ha produced average reductions in mating of 47·9% and 72·5% respectively and 37·9 g IIA/ha produced an overall reduction in mating of 71·5%, or 79·5% in released moth populations, over the same period. The proportion of virgin females present in disruption situations was significantly greater than in untreated populations and was density-independent for moth populations of up to 2 200/ha. The proportion of fertile eggs in disruption situations was correspondingly reduced to 30·2% from an average of 67·9% in control cycles. Reduction in sex pheromone trap catches is an unsatisfactory indicator of the extent to which males are prevented from inseminating females and considerably over-estimates the true degree of disruption. This is the first time that a naturally occurring inhibitor has been used successfully to disrupt mating in a field population of insects and it indicates the potential of the method for the control of high density pest populations in cotton. However, use of polyethylene dispensing mechanisms similar to those used in the field-cage disruption experiments would be unsuitable as a practical method of dispensing behaviour modifying chemicals and it is suggested that, for suitably controlled release of such chemicals, currently available microencapsulation technology offers the best prospects.

scholarly journals Flight initiation and flight activity in Prostephanus truncatus (Coleoptera: Bostrichidae)

1998 ◽  
Vol 88 (5) ◽  
pp. 545-552 ◽  
Author(s):  
D. Scholz ◽  
C. Borgemeister ◽  
R. H. Markham ◽  
H. M. Poehling
Keyword(s):  
Sex Ratios ◽  
Breeding Site ◽  
Pheromone Trap ◽  
Flight Activity ◽  
Prostephanus Truncatus ◽  
Pheromone Traps ◽  
Set Up ◽  
Trap Catches ◽  
Maize Cobs ◽  
Flight Initiation

AbstractIn an outdoor experimental set-up, the number of Prostephanus truncatus (Horn) flying from maize cobs was recorded over 38 observation weeks. Flight activity in the field was recorded for 50 weeks with three pheromone traps, each placed at c. 100–300 m from the first experimental set-up. Multiple regression analyses revealed that both flight initiation and flight activity were partly influenced by mean temperatures, but were not directly related. Flight initiation was mainly dependent on population density. An additional experiment showed that sex ratios among pheromone trap catches were not correlated with the number of beetles caught; sex ratios were female-biased throughout the year. Seasonal fluctuations in flight activity recorded with pheromone traps are mainly dependent on changes in the number and sizes of beetle populations in a given area, as well as on breeding site availability and suitability.

Non-Target Insects Captured in Sex Pheromone Traps of Spodoptera frugiperda in Sorghum Surrounded by Other Crops and Weeds

2020 ◽  
Vol 45 (3) ◽  
Author(s):  
Humberto Reyes-Prado ◽  
Agustín Jesús Gonzaga Segura ◽  
Concepción Martínez-Peralta ◽  
Paola Rossy García Sosa
Keyword(s):  
Sex Pheromone ◽  
Spodoptera Frugiperda ◽  
Pheromone Traps ◽  
Sex Pheromone Traps
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