Effect of peach cultivars on developmental time and life table parameters of Amphitetranychus viennensis (Acari: Tetranychidae)

2009 ◽  
Vol 14 (3) ◽  
pp. 206
Author(s):  
Dingxu Li ◽  
Juan Tian ◽  
Yanlan Guo ◽  
Jianguang Zhang
Keyword(s):  
Life Table ◽  
Developmental Time ◽  
Life Table Parameters

Life table parameters of Iranian population, Tetranychus kanzawai (Acari: Tetranychidae) fed on soybean leaves 

2019 ◽  
Vol 24 (2) ◽  
pp. 231 ◽  
Author(s):  
Iman Hassanvand ◽  
Shahriar Jafari ◽  
Masoumeh Khanjani
Keyword(s):  
Life Table ◽  
Nonlinear Models ◽  
Developmental Rate ◽  
Developmental Time ◽  
Thermal Constant ◽  
Adult Longevity ◽  
Immature Stages ◽  
Tetranychus Kanzawai ◽  
Life Table Parameters ◽  
Critical Temperatures

The effects of six ambient temperatures (15, 20, 25, 30, 35 and 37.5ºC) on life table parameters of Tetranychus kanzawai Kishida (Tetranychidae) were studied under laboratory conditions on soybean (Glycine max (L.) Merrill). Total immature developmental time of females at the above-mentioned temperatures was 28.55, 16.34, 9.01, 6.96, 5.56 and 5.65 days, respectively. A linear and two nonlinear models of Lactin and SSI were fitted to developmental rate of immature stages of T. kanzawai to predict the developmental rate as a function of temperature, as well as to estimate the thermal constant (k) and critical temperatures. The estimated k for total immature developmental time of females and males was 134.58 and 126.74 DD, respectively. The estimated Topt and Tmax by Lactin model for overall immature stages were 36.20 and 40.70ºC, respectively. Intrinsic optimum temperature (TФ) and T1 (Topt) by SSI model for total immature stages was estimated to be 23.23 and 35.71ºC, respectively. Also the estimated TL and Th of SSI model for overall immature stage were 09.21 and 38.46ºC, respectively. The longest and shortest adult longevity was observed at 15°C (60.63 days), and 37.5°C (7.34 days), respectively. Mated females laid highest and lowest eggs at 25°C (237.96 eggs) and 37.5°C (30.54 eggs), respectively. The rm values ranged from 0.356 day-1 at 30°C to 0.089 day-1at 15°C. The highest value of R0 was 163.55 offspring female-1 at 25°C. The presented information in this study provided new perspective to better management of T. kanzawai on apple trees in Iran.

Effect of African nightshade species (Solanaceae) on developmental time and life table parameters of Tetranychus evansi (Acari: Tetranychidae)

2010 ◽  
Vol 52 (1) ◽  
pp. 19-27 ◽  
Author(s):  
Lucy Kananu Murungi ◽  
Aggrey Nyende ◽  
John Wesonga ◽  
Peter Masinde ◽  
Markus Knapp
Keyword(s):  
Life Table ◽  
Developmental Time ◽  
Life Table Parameters ◽  
Tetranychus Evansi

scholarly journals Effect of Host Plants on Developmental Time and Life Table Parameters of Carposina sasakii (Lepidoptera: Carposinidae) Under Laboratory Conditions

2012 ◽  
Vol 41 (2) ◽  
pp. 349-354 ◽  
Author(s):  
Xihong Lei ◽  
Dingxu Li ◽  
Zheng Li ◽  
Frank G. Zalom ◽  
Lingwang Gao ◽  
...  
Keyword(s):  
Life Table ◽  
Host Plants ◽  
Developmental Time ◽  
Life Table Parameters ◽  
Laboratory Conditions ◽  
Carposina Sasakii

scholarly journals Development, reproduction and life table parameters of Tetranychus turkestani (Acari: Tetranychidae) on three different host plants

Acarologia ◽  
2020 ◽  
Vol 60 (3) ◽  
pp. 643-655
Author(s):  
Fereshteh Bazazzadeh ◽  
Parviz Shishehbor ◽  
Mehdi Esfandiari ◽  
Sara Farahi
Keyword(s):  
Life Table ◽  
Host Plants ◽  
Developmental Time ◽  
Phaseolus Lunatus ◽  
Intrinsic Rate Of Increase ◽  
Life Table Parameters ◽  
Net Reproductive Rate ◽  
White Bean ◽  
Red Bean ◽  
Tetranychus Turkestani

The strawberry spider mite, Tetranychus turkestani Ugarov and Nikolski, is one of the most important pests of different field and glasshouse crops in Iran. The objectives of the current study were to determine developmental time, survival, reproduction and life table parameters of T. turkestani on three plant species: cowpea (Vigna unguiculata L.), white bean (Phaseolus lunatus L.) and red bean (Phaseolus calcaratus Roxb.) at 25 ± 1 °C, 60 ± 10 % RH and a photoperiod of 16:8 (L:D). The mean developmental time from egg to adult on cowpea, white bean and red bean were 11.99, 10.43 and 10.46 days, respectively. The total preadult survival rates varied from 75% to 80%. Females of T. turkestani oviposited means of 65.13, 44.03 and 32.69 eggs on cowpea, white bean and red bean, respectively, and had a mean longevity of 13.92, 9.08 and 7.23 days on the same three host plants. The intrinsic rate of increase (rm) varied from 0.18 to 0.21. The net reproductive rate (R0) was higher on cowpea (42.33) than on white bean (24.95) or red bean (14.16). Using these measures, T. turkestani performance was best on cowpea, worst on red bean, and intermediate on white bean.

scholarly journals Effects of Delayed Mating on the Reproductive Performance of Henosepilachna vigintioctopunctata (F.) (Coleoptera: Coccinellidae)

Insects ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 629
Author(s):  
Ya-Ling Wang ◽  
Qi-Nian Jin ◽  
Xiang-Ping Wang
Keyword(s):  
Life Table ◽  
Mating Success ◽  
Doubling Time ◽  
Reproductive Rate ◽  
Oviposition Period ◽  
Population Doubling ◽  
Life Table Parameters ◽  
Effective Measure ◽  
Net Reproductive Rate ◽  
Henosepilachna Vigintioctopunctata

Henosepilachna vigintioctopunctata (F.) is a serious pest of numerous solanaceous crops in many Asian countries. The purpose of this study was to clarify the effects of delayed mating on mating success, fecundity, fertility, pre-oviposition period, oviposition period, adult longevity, and population life table parameters (including net reproductive rate, intrinsic and finite rates of increase, doubling time, and mean generation time) of H. vigintioctopunctata. Beginning three days after emergence for both sexes, mating was delayed an additional 0, 2, 4, 6, or 8 days. We compared the data when mating was delayed for males only with the data when mating was similarly delayed for females only. Reproductive and life table parameters were calculated from the two data sets and compared. The results showed that the preoviposition and oviposition period of adults was significantly reduced by delayed mating, while the preoviposition period was not significantly different in adults mated at older ages. The mating success rate, fecundity, and proportion of hatching eggs decreased with increasing mating age. Longevity was not affected by the age at mating. Mating delay also affected the life table parameters of H. vigintioctopunctata, with a similar trend observed in the net reproductive rate and intrinsic and finite rates of increase, all of which decreased gradually as the number of delay days increased. The population doubling time increased with increases in mating age. The results also showed that delayed mating was an effective measure to consider in controlling H. vigintioctopunctata. It is hoped that our data will provide a scientific basis and contribute technical guidance for forecasting and integrated management of this pest.

Life Table Parameters and Oviposition Preference ofPlutella xylostella(Lepidoptera: Plutellidae) on Six Brassicaceous Crop Plants

2018 ◽  
Vol 112 (2) ◽  
pp. 932-938 ◽  
Author(s):  
Mahdieh Jafary-Jahed ◽  
Jabraeil Razmjou ◽  
Gadir Nouri-Ganbalani ◽  
Bahram Naseri ◽  
Mahdi Hassanpour ◽  
...  
Keyword(s):  
Life Table ◽  
Oviposition Preference ◽  
Crop Plants ◽  
Life Table Parameters
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