Copulation reduces the duration of death-feigning behaviour in the sweetpotato weevil, Cylas formicarius

Kuriwada, Takashi; Kumano, Norikuni; Shiromoto, Keiko; Haraguchi, Dai

doi:10.1016/j.anbehav.2009.07.031

Cited by 30 publications

(28 citation statements)

References 30 publications

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“…In some beetles, the intensity of death-feigning often varies in a natural population. This phenomenon suggests that death-feigning has depth and that this difference in “depth of death feigning” is included in the variation of death-feigning in a natural population (Miyatake 2001; Kuriwada et al 2009). Therefore, it is possible that the selection pressure for death-feigning behavior of T. castaneum in Miyatake et al (2008a) was larger than that in the present study; in other words, the depth of death-feigning in the selected strains of the present study can be presumed to be shallow, possibly causing the observed lack of a significant difference in the expression of biogenic amines between selected strains.…”

Section: Discussionmentioning

confidence: 99%

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Correlated responses in death-feigning behavior, activity, and brain biogenic amine expression in red flour beetle Tribolium castaneum strains selected for walking distance

Matsumura

Sasaki

Miyatake

2015

J Ethol

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Dispersal ability may influence antipredator and mating strategies. A previous study showed a trade-off between predation avoidance and mating success in strains of the red flour beetle Tribolium castaneum selected for walking distance . Specifically, beetles derived from strains selected for longer walking distance suffered higher predation pressure and had higher male mating success than their counterparts derived from strains selected for shorter walking distance. In the study reported here, we compared the locomotor activity, biogenic amine expression in the brain, and death-feigning behavior of the red flour beetle strains selected for walking distance. The results indicated that individuals genetically predisposed to longer walking distance had higher locomotor activity and lower intensity of death-feigning behavior than those genetically predisposed to shorter walking distance. However, no significant differences were found in the expression of biogenic amines in the brain among strains selected for walking distance, although the level of dopamine in the brain differed from that of the strains divergently selected for duration of death-feigning behavior. The relationships between walking speed, activity, death-feigning behavior, and brain biogenic amines in T. castaneum are discussed.

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Section: Discussionmentioning

confidence: 99%

“…C. formicarius females have a reduced of duration of death-feigning after copulation (Kuriwada et al 2009), but we did not consider this effect in our study because we used only virgin females. It is necessary to examine the relationship between sex and death-feigning behavior by more detailed investigations.…”

Section: Discussionmentioning

confidence: 99%

Correlated responses in death-feigning behavior, activity, and brain biogenic amine expression in red flour beetle Tribolium castaneum strains selected for walking distance

Matsumura

Sasaki

Miyatake

2015

J Ethol

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“…However, in our study, exposure to sex pheromone did not affect male mating behavior. Male C. formicarius can mate with several females in a single night (Sugimoto et al 1996;Kuriwada et al 2009). Therefore, behavioral plasticity depending on experience of exposure to sex pheromone will be not adaptive.…”

Section: Discussionmentioning

confidence: 99%

Pre-exposure to sex pheromone did not affect mating behavior in the sweetpotato weevil Cylas formicarius

et al. 2010

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In sterile insect technique (SIT) programs, the released sterile males are important for their effectiveness. The use of sex pheromones to collect males is economical; however, pre-exposure to sex pheromones may affect male mating behavior, and would thus reduce the effectiveness of the SIT programs. Males exposed to sex pheromone may become attractive to other males due to pheromone adsorption on their body impregnation, prevent mating and reduce the dispersal of sterile males. We examined the effect of pre-exposure to sex pheromone on the mating behavior of male sweetpotato weevil Cylas formicarius. Pre-exposure to high-dose sex pheromone for 24 h did not affect the male mating behavior of C. formicarius, and the exposed males did not attract other males. These results suggest that male C. formicarius that were collected from a mass-rearing facility using sex pheromone can be effectively used in SIT programs.

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“…Larva instar I yang bertahan hidup juga mempunyai kemampuan untuk merusak umbi seperti larva-larva yang lebih besar (instar II, III, IV dan V). Larva instar I yang baru terbentuk langsung menggerek kulit umbi dan masuk ke dalam umbi karena umbi sebagai sumber pakan pada fase larva untuk berkembang menyelesaikan siklus hidupnya sebelum menjadi pupa (Kuriwada et al 2009;Reddy & Chi, 2015). Oleh karena itu, pengendalian penggerek umbi C. formicarius menggunakan jamur entomopatogen B. bassiana lebih prospektif dalam melindungi kerusakan umbi jika dibandigkan dengan insektisida kimia.…”

Section: Hasil Dan Pembahasanunclassified

Perbandingan Metode Aplikasi Jamur Entomopatogen Beauveria Bassiana Untuk Pengendalian Cylas Formicarius (Coleoptera: Curculionidae)

Prayogo¹

2017

JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA

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Comparing application methods of entomopathogenic fungus Beauveria bassiana to control Cylas formicarius (Coleoptera: Curculionidae). Cylas formicarius is a major pest of sweet potatoes. The tuber damage caused by C. formicarius reaches 100%. The research objective was to compare application methods of entomopathogenic fungi Beauveria bassiana to control C. formicarius. The research was conducted at the entomology screen house of Indonesian Legume and Tuber Crops Research Institute (ILETRI) at Malang, East Java, from January to September 2013. The treatment consisted of 12 application methods, each was repeated three times. The results showed that application of B. bassiana into the planting pit, soaking the sweet potato cuttings into the conidial suspension of B. bassiana for 30 minutes before planting, followed by spray application with two week interval (2 to 12 weeks after planting, WAP) or P4 was effective in suppressing C. formicarius population and tuber damage. Tuber weight obtained from P4 treatment was 1.4 kg plant -1 , while from the chemical insecticide was only 1.1 kg plant -1 . Tuber damage from P4 treatment was lower ( 5%) than that from chemical insecticide treatment (42%). Therefore, application of B. bassiana conidial suspension in the planting pit, continued by soaking the sweet potato cuttinginto the B. bassiana conidial suspension for 30 minutes before planting, and followed by spray applications of B. bassiana conidial suspension at two-week intervals ( 2-12 WAP) or P4 method can be recommended to control C. formicarius.Key words: adult, egg, larvae, tuber damage, tuber weight ABSTRAKPerbandingan metode aplikasi jamur entomopatogen Beauveria bassiana untuk pengendalian Cylas formicarius (Coleoptera:Ccurculionidae). Cylas formicarius merupakan hama utama ubi jalar. Kerusakan yang disebabkan C. formicarius mencapai 100%. Penelitian ini bertujuan untuk membandingkan metode aplikasi jamur entomopatogen, Beauveria bassiana dalam mengendalikan C. formicarius. Penelitian dilakukan di rumah kasa entomologi, Balai Penelitian Tanaman Aneka Kacang dan Umbi (BALITKABI), Malang pada bulan Januari sampai dengan September 2013. Perlakuan terdiri atas 12 metode aplikasi, masing-masing perlakuan diulang tiga kali. Hasil penelitian menunjukkan bahwa aplikasi konidia B. bassiana ke dalam lubang tanam, perendaman stek ke dalam suspensi konidia jamur B. bassiana selama 30 menit sebelum tanam, dilanjutkan aplikasi semprot dengan interval dua minggu mulai umur 2 sampai dengan 12 minggu setelah tanam (MST) (P4) efektif menekan populasi C. formicarius dan kerusakan umbi. Berat umbi perlakuan P4 mencapai 1,4 kg tanaman -1 , sedangkan perlakuan aplikasi insektisida kimia hanya 1,1 kg tanaman -1 . Kerusakan umbi perlakuan P4 hanya 5%, sedangkan kerusakan umbi pada aplikasi insektisida kimia mencapai 42%. Efikasi perlakuan P4 dapat dilihat dari populasi telur, larva maupun imago pada waktu panen lebih sedikit dibandingkan dengan perlakuan lainnya. Oleh karena itu, aplikasi suspensi konidia B. bassiana pada luba...

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Copulation reduces the duration of death-feigning behaviour in the sweetpotato weevil, Cylas formicarius

Cited by 30 publications

References 30 publications

Correlated responses in death-feigning behavior, activity, and brain biogenic amine expression in red flour beetle Tribolium castaneum strains selected for walking distance

Correlated responses in death-feigning behavior, activity, and brain biogenic amine expression in red flour beetle Tribolium castaneum strains selected for walking distance

Pre-exposure to sex pheromone did not affect mating behavior in the sweetpotato weevil Cylas formicarius

Perbandingan Metode Aplikasi Jamur Entomopatogen Beauveria Bassiana Untuk Pengendalian Cylas Formicarius (Coleoptera: Curculionidae)

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