Two-Sex Life Table and Predation Rate of<i>Propylaea japonica</i>Thunberg (Coleoptera: Coccinellidae) Fed on<i>Myzus persicae</i>(Sulzer) (Homoptera: Aphididae)

Chi, Hsin; Yang, Tsuey Ching

doi:10.1603/0046-225x-32.2.327

Cited by 207 publications

(141 citation statements)

References 31 publications

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“…Because they ignore the effects of male predators in biological control studies and male consumers in agricultural studies, female age-4 specific life tables are incapable of accurately describing predator-prey relationships or growth in two-sex and stage-structured populations. Using the age-stage, two-sex life table 6,7 has solved these problems and is now often used in ecological studies 8,9,10,11,12 .…”

Section: Finite Rate and Net Predation Ratementioning

confidence: 99%

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Group-rearing did not affect the life table and predation rate of Phytoseiulus persimilis (Acari: Phytoseiidae) fed on Tetranychus urticae

Saemi

Hasan

Kavousi

et al. 2017

saa

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To better understand the effect of individual- and group-rearing conditions on predator performance, we studied the life table and predation rate of the predatory mite, Phytoseiulus persimilis Athias-Henriot, after the mites had been individually- or group-reared on two-spotted spider mites, Tetranychus urticae, eggs at 25±1°C, 65±5% RH and a photoperiod of 16: 8 (L:D) h. The net reproductive rate (R0), intrinsic rate of increase (r), net predation rate (C0), finite predation rate (ω) in the individually-reared predators were 40.61 offspring, 0.2594 d-1, 437.3 T. urticae eggs, and 4.8668 preys/d, respectively. Similar values were obtained when the predators were reared in groups (R0 = 43.10 offspring, r = 0.2837 d-1, C0 = 420.9 T. urticae eggs, and ω = 5.9054 preys/d). Mean adult longevities were 28.42 and 25.29 d for group-reared male and female predators, respectively; these values were significantly shorter than those of individual-reared mites (49.87 d for male and 36 d for female). Our results showed that P. persimilis mites could be group-reared in biological control programs without negative effect on their growth and predation potential.

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Section: Finite Rate and Net Predation Ratementioning

confidence: 99%

“…However, because the predation ability generally varies with age and stage 8,9,10,11 , the finite predation rate is a better indicator of predation potential than the finite rate. If ψ < 1, then ω < λ.…”

Section: Finite Predation Ratementioning

confidence: 99%

Group-rearing did not affect the life table and predation rate of Phytoseiulus persimilis (Acari: Phytoseiidae) fed on Tetranychus urticae

Saemi

Hasan

Kavousi

et al. 2017

saa

Self Cite

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“…The abovementioned information along with consumption registers generate assumptions of potential predator efficiency in the orchard (Chi and Yang, 2003;Kishimoto, 2003;Hosseini et al, 2005;Gotoh et al, 2006). This knowledge is relevant particularly for the assessment of natural enemies that are commercially produced (O'Neil et al, 1998).…”

Section: Hirschfeldia Incana Pollen Watermentioning

confidence: 99%

Life Table Parameters and Consumption Rate of Cydnodromus picanus Ragusa, Amblyseius graminis Chant, and Galendromus occidentalis (Nesbitt) on Avocado Red Mite Oligonychus yothersi (McGregor) (Acari: Phytoseiidae, Tetranychidae)

2009

Chilean J. Agric. Res.

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The avocado red mite Oligonychus yothersi (McGregor) is the major leaf pest in Chile's avocado orchards. It affects leaf physiology and makes it necessary to seek new natural enemies to interact with low population densities of O. yothersi. The potentiality of three predator mites: Cydnodromus picanus Ragusa, Amblyseius graminis Chant, and Galendromus occidentalis (Nesbitt) was evaluated under laboratory conditions (27 ± 1.93 ºC, 87 ± 3.61% H.R. and 16:8 (L:D) photoperiod) on avocado leaf disks Persea americana Mill. var. Hass (Ø = 5 cm) by separately feeding eggs, immature, and adult females of O. yothersi, and registering postembryonic development, consumption, as well as life table parameters. The postembryonic development of C. picanus was significantly lower (5.46 days) compared to both A. graminis (7.33 days) and G. occidentalis (8.69 days) which were fed with immature O. yothersi. The life table parameters of C. picanus were net reproductive rate R0 = 25.41, finite rate of increase λ = 1.29, and mean generation time T = 12.46. The net intrinsic rate of increase (rm) was significantly higher for C. picanus (rm = 0.25) in contrast with G. occidentalis (rm = 0.19), while A. graminis showed rm = -0.06 indicating that its population didn't have descendants. Under laboratory conditions, rm registered by C. picanus is an indicator of its predatory potential to control O. yothersi. It can be assumed that the pest population reduction pattern could be maintained under field conditions.

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“…The collection of data on life-table at different temperature gives an important task for pest management in different environmental conditions [10]. Cohort life tables give comprehensive information on the mortality, survivorship, and development of a population and as such are fundamental to both theoretical and applied population ecology [11]. The expectancy of life exhibited a continuous decline with advancement of age.…”

Section: Introductionmentioning

confidence: 99%

Stage Specific Life Table of Invasive Pest Mealybug, Phenacoccus Solenopsis (Tinsley) Under Cotton Field Conditions

Sahito

Kousar

Mangrio

et al. 2017

Current Research in Agricultural Sciences

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Article HistoryThe field study was conducted on at the experimental field of SALU -Khairpur during, 2016. Two hundred eggs were kept for each replication on cotton plants grown in large pots. When eggs hatched, the life table parameters such as; apparent mortality, survival fraction, mortality survivor ratio, indispensable mortality and k-value were studied. Natural enemies such as; Chrysoperla carneae, lady bird beetles, Spiders and Anasius bambawallae were found active on the potted and surrounding cotton plants in the field conditions. The total mortality in egg stage went to 19.00%. The mortality percentages of 1 st instars due to natural enemies recorded was (18.73%) while, in 2 nd instars (13.13%) mortality was recorded. The total combined mortality in 1 st and 2 nd instars was recorded (26.34%) and (15.64%), respectively. However, the mortality of 3 rd instars and pupae due to parasitoids were recorded (7.28%) with the total mortality (10.26%) and the total mortality (54.83%) in cotton potted plants was recorded. Consequently, (45.17%) of adults survived with male and female ratio as ♂1:6.52♀, respectively. The highest apparent mortality was (26.34%), indispensable mortality (96.89) and k-value (0.13) recorded in 1 st instar. The maximum survival fraction was recorded (0.90) in third instars/pupae with the total k-value generations (0.35). The study revealed that the predators and parasitoids should be encouraged in cotton field when mealybugs appear, because predators are highly voracious feeder of 1 st and 2 nd instars whereas; the parasitoid, A. bambawallae is known as main controlling natural enemy of cotton mealybug.Contribution/ Originality: This study documents over the biological parameters of cotton mealybug to check its, egg laying, mortality, survivor ratio, total life span, fecundity, fertility, different life stages, predators activity and aboitic factors with the different equations about this vigorous pest under cotton field conditions.

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Two-Sex Life Table and Predation Rate ofPropylaea japonicaThunberg (Coleoptera: Coccinellidae) Fed onMyzus persicae(Sulzer) (Homoptera: Aphididae)

Cited by 207 publications

References 31 publications

Group-rearing did not affect the life table and predation rate of Phytoseiulus persimilis (Acari: Phytoseiidae) fed on Tetranychus urticae

Group-rearing did not affect the life table and predation rate of Phytoseiulus persimilis (Acari: Phytoseiidae) fed on Tetranychus urticae

Life Table Parameters and Consumption Rate of Cydnodromus picanus Ragusa, Amblyseius graminis Chant, and Galendromus occidentalis (Nesbitt) on Avocado Red Mite Oligonychus yothersi (McGregor) (Acari: Phytoseiidae, Tetranychidae)

Stage Specific Life Table of Invasive Pest Mealybug, Phenacoccus Solenopsis (Tinsley) Under Cotton Field Conditions

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