Citrus limonoid effects on Colorado potato beetle larval survival and development

Murray, Kathleen D.; Groden, Eleanor; Drummond, Francis A.; Alford, A. R.; Storch, R. H.; Bentley, Michael D.

doi:10.1111/j.1570-7458.1996.tb00966.x

Cited by 8 publications

(8 citation statements)

References 18 publications

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“…For this reason, many alternative methods have been developed against this insect in recent years. Some of them are: repellent or attractant effects of some weeds and plants or their extracts (Horton and Capinera, 1990;Mendel et al, 1991;Pelletier and Smilowitz, 1991;Franca et al, 1994;Lu and Logan, 1994a;Xu et al, 1995;Murray et al, 1996;Cetinsoy et al, 1998) and repellent effects of some chemicals or compounds (Yencho et al, 1994;Schutz et al, 1997a,b;Dickens, 2002).…”

Section: Introductionmentioning

confidence: 99%

Determination of life table and biology of Colorado potato beetle, Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae), feeding on five different potato varieties in Turkey

Yaşar

GüNGÖR

2005

Appl. Entomol. Zool.

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This study was carried out to determine the nourishment preference and life table of the larvae and adults of Leptinotarsa decemlineata on the potato varieties of Agria, Pasinler, Marfona, Granola and Caspar. While the longest development duration in L. decemlineata was observed on the Granola variety, the shortest one was detected on the Caspar variety. The highest egg mortality in the Colorado potato beetle occurred on the Marfona variety, while the lowest mortality occurred on the Pasinler variety. The total mortality of immature stages of L. decemlineata was the highest on the Marfona variety and the lowest was on the Caspar variety. The highest larval mortalities were observed in the first larval stages. The highest daily fecundities on potato varieties were on the Granola variety and the highest total fecundities were on the Pasinler variety. However, the lowest values for both characteristics were on the Agria variety. The descending order of intrinsic rates of increase was Pasinler, Caspar, Agria, Marfona and Granola potato varieties. The highest net reproductive rates were on the Caspar variety and the lowest rates were on the Granola variety. The generation time was the longest in the Caspar variety and the shortest in the Pasinler variety. The Colorado potato beetle showed the least performance on the Marfona potato variety when considering the mortality of eggs and immature stages, total fecundity and net reproductive rate.

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Section: Introductionmentioning

confidence: 99%

Determination of life table and biology of Colorado potato beetle, Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae), feeding on five different potato varieties in Turkey

Yaşar

GüNGÖR

2005

Appl. Entomol. Zool.

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“…Among estimated beetle larval seasonal densities, which reflect the sum of effects occurring over the entire sampling period, significant linear trends of decreasing larval density with increasing limonoid application dosage and increasing application frequency were found (24). Plant defoliation was significantly reduced in response to limonoid dosage and application frequency.…”

Section: Figure 2 Season-long Strategy Of Citrus Limonoid Use For Inmentioning

confidence: 93%

“…These activities were seen in a series of later laboratory, field cage, and field plot studies using a crude citrus limonoid extract containing about 80% limonin. The extract consistently delayed Colorado potato beetle larval development, increased mortality and decreased insect seasonal densities in direct response to application dosages (24,25).…”

Section: Growth and Development Bioassaysmentioning

confidence: 99%

“…Initially, we proposed a season-long management program (Figure 2) using the citrus limonoids applied at times during the growing season when their biological effects could be maximized (24,25). The effects of the crude citrus limonoid extract on natural populations in the field indicated significant adult beetle density decrease in response to increasing application dosage and frequency (25).…”

Section: Field Trialsmentioning

confidence: 99%

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Prospects for Citrus Limonoids in Insect Pest Management

Alford¹,

Murray²

2000

ACS Symposium Series

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Limonin and other citrus limonoids act as insect repellents, feeding deterrents, growth disrupters, and reproduction inhibitors against several pest species across a wide range of agricultural crops. We have investigated how these allelochemic properties can be deployed as ecologically sound methods of insect pest management and reduce dependence on conventional, synthetic insecticides in potato production. In a multi-stage process of study and product development, we demonstrated that field populations of Colorado potato beetles, Leptinotarsa decemlineata (Say), could be effectively managed using larvicidal applications of limonoids. Adult repellent and oviposition deterrent effects of limonoids can prevent these pests from colonizing and reproducing in potato fields and thereby reduce or eliminate the need for further pest control efforts. Limonoids also appear to act as synergists to enhance the effectiveness of other biological and conventional insecticides. Research and development approaches and limitations of these materials in agricultural pest management are described.The theoretical basis for using natural plant compounds like the citrus limonoids for the management of insect pests is within the concept of coevolution advanced by Ehlrich & Raven in 1964 (/). The coevolutionary process of plants and insects has resulted in a number of plant defenses, including an estimated hundreds of thousands of plant-produced chemicals (2). Plant-feeding insects select and recognize their food based on plant chemical characteristics acting as attractants and phagostimulants that promote host finding and feeding. Other phytochemicals may also inhibit feeding, disrupt growth and development, and modify behavior by acting as insect deterrents, repellents or toxins (3,4,5). The identification and development of these biologically active allelochemicals into effective, insect pest management components have been the goals of natural product chemists, entomologists and agriculturists for decades, but commercial successes have been relatively rare.Synthetic chemical insecticides, with their greater than fifty years of commercial dominance, have set the standards for assessment of all materials for controlling

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“…By comparison, changes in the A ring of the limonoid nucleus did not diminish antifeedant activity. Long-term exposure to limonoids delayed the development of the Colorado potato beetle larvae and increased mortality (18,19). In addition, the limonoids acted as a repellent to the Colorado potato beetle adults even when applied to the outer margins of the field (20).…”

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confidence: 99%

Potential Health Benefits of Citrus: An Overview

Patil

Brodbelt

Miller

et al. 2006

ACS Symposium Series

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Recent studies have documented a number of health benefits associated with the consumption of citrus, largely due to the natural phytochemicals found in these fruits, such as flavonoids, limonoids, furocoumarins, and pectins. Interest in the chemopreventive properties of phytochemicals has led to more detailed studies to determine the mechanisms of action of these compounds in animal models and humans, to optimize the levels of the phytochemicals in citrus based on agricultural and processing factors, and to develop better analytical methods for identifying and quantifying phytochemicals in complex mixtures. This chapter provides an overview of the many aspects of citrus and its health benefits that will be described in more detail in chapters throughout this book.

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Citrus limonoid effects on Colorado potato beetle larval survival and development

Cited by 8 publications

References 18 publications

Determination of life table and biology of Colorado potato beetle, Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae), feeding on five different potato varieties in Turkey

Determination of life table and biology of Colorado potato beetle, Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae), feeding on five different potato varieties in Turkey

Prospects for Citrus Limonoids in Insect Pest Management

Potential Health Benefits of Citrus: An Overview

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