scholarly journals Fertility, longevity and intrinsic rate of increase of Aphidius gifuensis Ashmead (Hymenoptera: Braconidae) on the green peach aphid, Myzus persicae (Sulzer) (Homoptera: Aphididae)

2004 ◽  
Vol 39 (1) ◽  
pp. 113-117 ◽  
Author(s):  
Izumi Ohta ◽  
Makoto Ohtaishi
Keyword(s):  
Myzus Persicae ◽  
Green Peach Aphid ◽  
Intrinsic Rate ◽  
Intrinsic Rate Of Increase ◽  
Rate Of Increase ◽  
Aphidius Gifuensis

DEVELOPMENT AND REPRODUCTION OF THE GREEN PEACH APHID, MYZUS PERSICAE (HOMOPTERA: APHIDIDAE), ON UPPER AND LOWER LEAVES OF THREE POTATO CULTIVARS

1985 ◽  
Vol 117 (2) ◽  
pp. 247-252 ◽  
Author(s):  
R. K. Jansson ◽  
Z. Smilowitz
Keyword(s):  
Myzus Persicae ◽  
Green Peach Aphid ◽  
Potato Cultivar ◽  
Intrinsic Rate ◽  
Developmental Time ◽  
Intrinsic Rate Of Increase ◽  
Leaf Position ◽  
Vertical Leaf ◽  
Rate Of Increase ◽  
Reproductive Life

AbstractThe influence of potato cultivar (Solanum tuberosum tuberosum (L.) cvs. Katahdin (long-season), Norchip (mid-season), and Superior (short-season)) and vertical leaf position on certain life statistics of the green peach aphid, Myzus persicae (Sulzer), were assessed in a glasshouse environment. Aphids were caged on upper and lower leaves of each cultivar. Developmental time requirements for pre-reproductive life stages were similar among cultivars and between leaf positions. Longevity was similar among cultivars within leaf position. However, aphids survived 62.3, 53.6, and longer on lower leaves than on upper leaves of Superior, Norchip, and Katahdin (p < 0.05 on Superior and Katahdin). Mean generation time (MGT) was similar among cultivars on upper leaves. On lower leaves, MGT was shorter on Superior than on Katahdin. MGT was 15.2, 6.9, and shorter on lower leaves than on upper leaves of Superior, Norchip, and Katahdin, respectively (p < 0.05 on Superior). Total fecundity and intrinsic rate of increase were greater on the lower leaves of each cultivar.

Seed treatments with thiamine reduce the performance of generalist and specialist aphids on crop plants

2017 ◽  
Vol 108 (1) ◽  
pp. 84-92 ◽  
Author(s):  
A.M. Hamada ◽  
J. Fatehi ◽  
L.M.V. Jonsson
Keyword(s):  
Acyrthosiphon Pisum ◽  
Green Peach Aphid ◽  
Rhopalosiphum Padi ◽  
Plant Defence ◽  
Intrinsic Rate ◽  
Pea Aphid ◽  
Intrinsic Rate Of Increase ◽  
Host Acceptance ◽  
Seed Treatments ◽  
Rate Of Increase

AbstractThiamine is a vitamin that has been shown to act as a trigger to activate plant defence and reduce pathogen and nematode infection as well as aphid settling and reproduction. We have here investigated whether thiamine treatments of seeds (i.e. seed dressing) would increase plant resistance against aphids and whether this would have different effects on a generalist than on specialist aphids. Seeds of wheat, barley, oat and pea were treated with thiamine alone or in combination with the biocontrol bacteriaPseudomonas chlororaphisMA 342 (MA 342). Plants were grown in climate chambers. The effects of seed treatment on fecundity, host acceptance and life span were studied on specialist aphids bird cherry-oat aphid (Rhopalosiphum padiL.) and pea aphid (Acyrthosiphon pisumHarris) and on the generalist green peach aphid (Myzus persicae, Sulzer). Thiamine seed treatments reduced reproduction and host acceptance of all three aphid species. The number of days to reproduction, the length of the reproductive life, the fecundity and the intrinsic rate of increase were found reduced for bird cherry-oat aphid after thiamine treatment of the cereal seeds. MA 342 did not have any effect in any of the plant-aphid combinations, except a weak decrease of pea aphid reproduction on pea. The results show that there are no differential effects of either thiamine or MA 342 seed treatments on specialist and generalist aphids and suggest that seed treatments with thiamine has a potential in aphid pest management.

Performance of Myzus persicae (Hemiptera: Aphididae) clones on different host-plants and their host preference

2003 ◽  
Vol 93 (3) ◽  
pp. 235-242 ◽  
Author(s):  
N.N. Nikolakakis ◽  
J.T. Margaritopoulos ◽  
J.A. Tsitsipis
Keyword(s):  
Myzus Persicae ◽  
Intrinsic Rate ◽  
Developmental Time ◽  
Host Specialization ◽  
Choice Test ◽  
Intrinsic Rate Of Increase ◽  
Northern Greece ◽  
Adult Weight ◽  
Mean Values ◽  
Rate Of Increase

AbstractThe performance of eighteen clones of Myzus persicae (Sulzer) on pepper and tobacco plants at 20°C and L16:D8 and the choice of young adult apterae between tobacco and pepper leaf-discs were examined. The clones were collected from weeds and peach in two tobacco-growing regions: Katerini, northern Greece and Karditsa, central Greece (only from weeds) and from Lehonia, central eastern Greece where tobacco is not cultivated. All clones did well on both hosts. However, the analysis of data revealed a significant effect of ‘region / host plant origin’ on aphid performance. The mean values of adult weight, intrinsic rate of increase and fecundity of the clones collected in Lehonia and reared on tobacco were significantly lower than the observed values for clones from Katerini and Karditsa. Aphids from Lehonia had significantly higher mean values for developmental time on tobacco than clones from the other regions whereas the opposite was observed when aphids were reared on pepper. Aphids collected in Lehonia performed better on pepper than those originating from the tobacco-growing regions. A choice test revealed differences among the clones originating from different regions. Fifty three percent and 43% of aphids from weeds and peach from Lehonia, respectively, chose pepper. By comparison 41.5% and 40.0% of aphids from peach and weeds from Katerini, respectively and 49.5% of aphids from Karditsa preferred tobacco. The results are discussed in relation to host specialization in M. persicae.

scholarly journals Biocontrol Potential of Purified Elicitor Protein PeBL1 Extracted from Brevibacillus laterosporus Strain A60 and Its Capacity in the Induction of Defense Process against Cucumber Aphid (Myzus persicae) in Cucumber (Cucumis sativus)

Biology ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 179
Author(s):  
Khadija Javed ◽  
Humayun Javed ◽  
Dewen Qiu
Keyword(s):  
Myzus Persicae ◽  
Intrinsic Rate ◽  
Intrinsic Rate Of Increase ◽  
Cucumber Plant ◽  
Cucumber Seedlings ◽  
Brevibacillus Laterosporus ◽  
Protein Elicitor ◽  
Rate Of Increase ◽  
Biocontrol Potential ◽  
Chemical Pesticides

The Cucumber aphid (Myzus persicae), a destructive cucumber aphid usually managed by chemical pesticides, is responsible for enormous annual agricultural losses. A protein elicitor, PeBL1, was investigated in the present work for its ability to induce a defense response against M. persicae in cucumber. The rates of population growth (Intrinsic rate of increase) of M. persicae (second and third generations) decreased with PeBL1-treated cucumber seedlings as compared to positive (water) and negative 70.58 μg mL−1 controls (50 mM Tris-HCl, pH 8.0). In an assay on host selection, M. persicae had a preference for colonizing control plants as compared to the PeBL1-treated cucumber seedlings. The nymphal development time of the aphid was extended with the PeBL1-treated cucumber seedlings. Likewise, fecundity was reduced, with less offspring produced in the PeBL1-treated cucumber seedlings as compared to the positive (water) and negative 70.58 μg mL−1 controls (50 mM Tris-HCl, pH 8.0). The cucumber leaves treated with PeBL1 had a hazardous surface environment for M. persicae, caused by trichomes and wax formation. Jasmonic acid (JA), salicylic acid (SA), and ethylene (ET) levels were significantly higher, exhibiting significant accumulation in the PeBL1-treated cucumber seedlings. The following results showed that PeBL1 considerably altered the height of the cucumber plant and the surface structure of the leaves to minimize M. persicae reproduction, and it prevented colonization. Defensive processes also included the activation of pathways (JA, SA, and ET). This study provides evidence of biocontrol for the use of PeBL1 in cucumber defense against M. persicae.

scholarly journals Effects of Five Host Plant Species on the Life History and Population Growth Parameters of Myzus persicae (Hemiptera: Aphididae)

2019 ◽  
Vol 19 (5) ◽  
Author(s):  
Feng Hong ◽  
Hong-Liang Han ◽  
Po Pu ◽  
Dong Wei ◽  
Jia Wang ◽  
...  
Keyword(s):  
Life History ◽  
Myzus Persicae ◽  
Host Plants ◽  
Growth Parameters ◽  
Green Peach Aphid ◽  
Reproductive Rate ◽  
Intrinsic Rate Of Increase ◽  
Net Reproductive Rate ◽  
Rate Of Increase ◽  
Wide Range

Abstract The green peach aphid, Myzus persicae Sulzer (Hemiptera: Aphididae), is an important agricultural pest with a wide range of host plants. To study effects of host species on the life history traits of M. persicae, aphids were individually reared on five host plants: Brassica campestris L. (Brassicales: Brassicaceae), Capsicum annuum L. (Tubiflorae: Solanaceae), Nicotiana tabacum L. (Tubiflorae: Solanaceae), Raphanus sativus L. (Brassicales: Brassicaceae), and Vicia faba L. (Rosales: Leguminosae). TWOSEX-MSchart software was used for the statistical analysis according to the age-stage, two-sex life table theory. The results showed that the shortest preadult stage and adult/total prereproductive period of M. persicae were 6.48, 0.19, and 6.67 d on V. faba, respectively. While the adult and total longevity of M. persicae on R. sativus (25.00 and 31.62 d) and N. tabacum (24.40 and 30.56 d) were significantly longer than that on the other three hosts, as was the reproductive period. The fecundity of M. persicae on R. sativus (80.83 nymphs per female), N. tabacum (71.72 nymphs per female), and V. faba (70.39 nymphs per female) was also greater than that on B. campestris and C. annuum. It was demonstrated that V. faba, R. sativus, and N. tabacum were more suitable plants for the growth of M. persicae exhibiting a shorter preadult stage, longer longevity, and greater fecundity than the remaining two species, as confirmed by the higher intrinsic rate of increase and net reproductive rate.

THE INTRINSIC RATE OF NATURAL INCREASE OF THE GREEN PEACH APHID, MYZUS PERSICAE (SULZER) (HOMOPTERA: APHIDIDAE), ON COLLARDS (BRASSICA OLERACEA L.)

1985 ◽  
Vol 117 (9) ◽  
pp. 1147-1149 ◽  
Author(s):  
Thomas W. Culliney ◽  
David Pimentel
Keyword(s):  
Green Peach Aphid ◽  
Quantitative Measure ◽  
Intrinsic Rate ◽  
Natural Increase ◽  
Intrinsic Rate Of Increase ◽  
Ecological Index ◽  
Rate Of Increase ◽  
Species Population ◽  
Insight Into ◽  
Gaining Insight

Demographic analysis of a species population can be useful in gaining insight into its dynamics in a particular environment. The calculated intrinsic rate of increase of a population may be valuable in predicting population performance. As a single, discrete value, it serves as a quantitative measure, or ecological index, of the response of a species to a set of environmental conditions (Birch 1948; Messenger 1964).

SURVIVAL AND THE RELATIONSHIP BETWEEN FECUNDITY AND LONGEVITY IN MYZUS PERSICAE (HOMOPTERA: APHIDIDAE)

1985 ◽  
Vol 117 (2) ◽  
pp. 253-254
Author(s):  
R. K. Jansson ◽  
Z. Smilowitz
Keyword(s):  
Population Dynamics ◽  
Solanum Tuberosum ◽  
Myzus Persicae ◽  
Nutritional Quality ◽  
Intrinsic Rate ◽  
Physiological Age ◽  
Intrinsic Rate Of Increase ◽  
Rate Of Increase ◽  
The Relationship

In a previous report (Jansson and Smilowitz 1985), several life statistics of Myzus persicae (Sulzer) were compared on upper and lower leaves of three potato cultivars (Solanum tuberosum tuberosum cvs. Katahdin, Norchip, and Superior). In general, life statistics were similar (p > 0.05) between cultivars. However, certain life statistics (fecundity and intrinsic rate of increase) consistently were greater (p < 0.05) on lower leaves than on upper leaves of each cultivar. In the previous study, we did not include data on age-specific survival or the relationship between fecundity and longevity to support the premise that the population dynamics of M. persicae on potato are related to the physiological age of leaves (i.e. nutritional quality of leaves) (see Jansson and Smilowitz 1985). This information would be useful for developing a model describing the population dynamics of M. persicae. For this reason, we present here data on age-specific survival and the relationship between fecundity and longevity of M. persicae on upper and lower leaves of three Dotato cultivars.

Influence of temperature on the development and reproduction of Cinara cedri (Hemiptera: Aphidoidea: Lachninae)

2021 ◽  
pp. 1-6
Author(s):  
Yingchao Ji ◽  
Guohua Li ◽  
Chenggang Zhou ◽  
Shuyan Yin
Keyword(s):  
Intrinsic Rate ◽  
Intrinsic Rate Of Increase ◽  
Threshold Temperature ◽  
Reproduction Rate ◽  
Cedrus Deodara ◽  
Developmental Threshold ◽  
Factors Affecting ◽  
Rate Of Increase ◽  
Influence Of Temperature On ◽  
Development Duration

Abstract Temperature is one of the main factors affecting insect growth, development and reproduction. The effects of temperatures (10, 15, 20, 25 and 30°C) on the development and reproduction of Cinara cedri Mimeur (Hemiptera: Aphidoidea: Lachnidae) fed on Cedrus deodara (Roxb.) G. Don were evaluated in this study. With the increase of temperature from 10 to 30°C, the development duration at different development stages gradually shortened. There was a significant positive correlation between the developmental rates and temperature, following a quadratic regression model. The lower developmental threshold temperature (C) and effective accumulated temperatures (K) for completing a generation were 4.13°C and 263.4 degree-days, respectively. The highest fecundity was observed at 20°C with 25.74 first-instar nymphs/female. Both the highest intrinsic rate of increase (r, 0.11 ± 0.03) and net reproduction rate (R0, 19.06 ± 2.05) were observed at 20°C, whereas the lowest values of r (0.05 ± 0.01) at 10°C and R0 (5.78 ± 0.88) at 30°C were observed. The results suggest that temperature significantly affects the biology of C. cedri and the optimal temperature for its development is 20°C.

Ambient Humidity Affects Development, Survival, and Reproduction of the Invasive Fall Armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae), in China

2021 ◽  
Author(s):  
Limei He ◽  
Shengyuan Zhao ◽  
Abid Ali ◽  
Shishuai Ge ◽  
Kongming Wu
Keyword(s):  
Spodoptera Frugiperda ◽  
Fall Armyworm ◽  
Intrinsic Rate ◽  
Intrinsic Rate Of Increase ◽  
Reproduction Rate ◽  
Ambient Humidity ◽  
Rate Of Increase ◽  
Population Forecasting ◽  
Survival And Reproduction ◽  
Net Reproduction

Abstract Ambient humidity can directly affect the water balance in insects. The migratory fall armyworm, Spodoptera frugiperda Smith, has spread to more than 60 countries and regions in Africa, Asia, and Oceania that have a great difference in average ambient humidity. Understanding the effects of ambient humidity changes on its development, survival, and reproduction can help to predict its population dynamics in different habitats. Therefore, we evaluated the effects of atmospheric relative humidity (RH) on the development, survival, and reproduction and soil moisture on the pupation and emergence of fall armyworm. As a result, survival and pupal mass increased significantly with increasing RH. Among the five RHs tested, 80% RH was the most suitable for fall armyworm with the highest intrinsic rate of increase (r), finite rate of increase (λ), and net reproduction rate (R0). The population growth at the different RHs in decreasing order was 80 &gt; 100 &gt; 60 &gt; 40 &gt; 20%. A relative moisture (RM) of soil from 6.80 to 47.59% was suitable for fall armyworm pupation, survival, and eclosion, but fall armyworm could not pupate normally in soil with 88.39 and 95.19% RM. The survival and emergence rate of fall armyworm pupae were reduced by irrigation that increased the RM after the mature larvae entered the soil. These findings may be helpful for refining laboratory rearing protocols, population forecasting, and management of fall armyworm.

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