scholarly journals Aphid Control on Shade Tobacco with Systemic Insecticides, 1996

1997 ◽  
Vol 22 (1) ◽  
pp. 326-326
Author(s):  
James A. LaMondia ◽  
Thomas M. Rathier
Keyword(s):  
Systemic Insecticides ◽  
Aphid Control

scholarly journals Evaluation of Insecticides for Suppression of Japanese Beetle, Popillia japonica Newman, and Crapemyrtle Aphid, Tinocallis kahawaluokalani Kirkaldy

2005 ◽  
Vol 23 (3) ◽  
pp. 145-148
Author(s):  
Gretchen V. Pettis ◽  
S. Kristine Braman ◽  
L. Paul Guillebeau ◽  
Beverly Sparks
Keyword(s):  
Field Trial ◽  
Popillia Japonica ◽  
Japanese Beetle ◽  
Systemic Insecticides ◽  
Lambda Cyhalothrin ◽  
Aphid Control ◽  
Beetle Damage ◽  
Screen House ◽  
Extensive Damage

Abstract Crapemyrtle aphid, Tinocallis kahawaluokalani (Kirkaldy), and Japanese beetle, Popillia japonica Newman, cause extensive damage to crapemyrtle, Lagerstroemia spp., in both the landscape and the nursery. We evaluated foliar and systemic insecticides for control of these two important pests in a field trial. Aphid control was also evaluated in a separate screen house trial on five cultivars of crapemyrtle. Talstar GH (bifenthrin), Scimitar GC (lambda-cyhalothrin), Merit 75WP (imidacloprid) and Flagship (thiamethoxam) were among the most effective of eleven insecticides tested in the field trial for suppression of concurrent populations of aphids and beetles. Greatest reduction in Japanese beetle damage alone was evident with bifenthrin and lambda-cyhalothrin. Aphid numbers were lowest on plants treated with Orthene TTO (acephate), Merit 75 WP and Flagship in the field trial and Flagship, Talstar GH and Scimitar GC in the screen house trial. Aphid numbers, among the five cultivars included in the screen house evaluations, were highest on ‘Hopi’ and lowest on ‘Acoma’.

Aphid Control on Connecticut Shade Tobacco with Systemic Insecticides, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 304-304
Author(s):  
James A. LaMondia ◽  
Thomas M. Rathier
Keyword(s):  
Systemic Insecticides ◽  
Aphid Control

scholarly journals SYSTEMIC INSECTICIDES FOR FLEA BEETLE AND APHID CONTROL ON BURLEY TOBACCO, 2005

2006 ◽  
Vol 31 (1) ◽  
Author(s):  
Paul J. Semtner ◽  
Lakshmipathi Srigiriraju ◽  
Ned Jones
Keyword(s):  
Flea Beetle ◽  
Burley Tobacco ◽  
Systemic Insecticides ◽  
Aphid Control

scholarly journals Distribution and incidence of viruses in Irish seed potato crops

2015 ◽  
Vol 54 (2) ◽  
pp. 98-106 ◽  
Author(s):  
F. Hutton ◽  
J.H. Spink ◽  
D. Griffin ◽  
S. Kildea ◽  
D. Bonner ◽  
...  
Keyword(s):  
Potato Virus ◽  
Significant Proportion ◽  
Potato Production ◽  
Weather Data ◽  
Management Approach ◽  
Potato Seed ◽  
Virus Diseases ◽  
Aphid Control ◽  
Daily Weather Data ◽  
Potato Crops

Abstract Virus diseases are of key importance in potato production and in particular for the production of disease-free potato seed. However, there is little known about the frequency and distribution of potato virus diseases in Ireland. Despite a large number of samples being tested each year, the data has never been collated either within or across years. Information from all known potato virus testing carried out in the years 2006–2012 by the Department of Agriculture Food and Marine was collated to give an indication of the distribution and incidence of potato virus in Ireland. It was found that there was significant variation between regions, varieties, years and seed classes. A definition of daily weather data suitable for aphid flight was developed, which accounted for a significant proportion of the variation in virus incidence between years. This use of weather data to predict virus risk could be developed to form the basis of an integrated pest management approach for aphid control in Irish potato crops.

scholarly journals Evaluation of dsRNA delivery methods for targeting macrophage migration inhibitory factor MIF in RNAi-based aphid control

2021 ◽  
Author(s):  
Shaoshuai Liu ◽  
Maria Jose Ladera-Carmona ◽  
Minna M. Poranen ◽  
Aart J. E. van Bel ◽  
Karl-Heinz Kogel ◽  
...  
Keyword(s):  
Immune Responses ◽  
Artificial Diet ◽  
Sieve Tube ◽  
Feeding Strategies ◽  
Macrophage Migration ◽  
Delivery Methods ◽  
Host Immune Responses ◽  
Aphid Control ◽  
Barley Leaves ◽  
Sieve Tubes

AbstractMacrophage migration inhibitory factors (MIFs) are multifunctional proteins regulating major processes in mammals, including activation of innate immune responses. In invertebrates, MIF proteins participate in the modulation of host immune responses when secreted by parasitic organisms, such as aphids. In this study, we assessed the possibility to use MIF genes as targets for RNA interference (RNAi)-based control of the grain aphid Sitobion avenae (Sa) on barley (Hordeum vulgare). When nymphs were fed on artificial diet containing double-stranded (ds)RNAs (SaMIF-dsRNAs) that target sequences of the three MIF genes SaMIF1, SaMIF2 and SaMIF3, they showed higher mortality rates and these rates correlated with reduced MIF transcript levels as compared to the aphids feeding on artificial diet containing a control dsRNA (GFP-dsRNA). Comparison of different feeding strategies showed that nymphs’ survival was not altered when they fed from barley seedlings sprayed with naked SaMIF-dsRNAs, suggesting they did not effectively take up dsRNA from the sieve tubes of these plants. Furthermore, aphids’ survival was also not affected when the nymphs fed on leaves supplied with dsRNA via basal cut ends of barley leaves. Consistent with this finding, the use of sieve tube-specific YFP-labeled Arabidopsis reporter lines confirmed that fluorescent 21 nt dsRNACy3, when supplied via petioles or spraying, co-localized with xylem structures, but not with phloem tissue. Our results suggest that MIF genes are a potential target for insect control and also imply that application of naked dsRNA to plants for aphid control is inefficient. More efforts should be put into the development of effective dsRNA formulations.

scholarly journals Functional response of Harmonia axyridis preying on Acyrthosiphon pisum nymphs: the effect of temperature

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yasir Islam ◽  
Farhan Mahmood Shah ◽  
Xu Rubing ◽  
Muhammad Razaq ◽  
Miao Yabo ◽  
...  
Keyword(s):  
Functional Response ◽  
High Performance ◽  
Acyrthosiphon Pisum ◽  
Harmonia Axyridis ◽  
Effect Of Temperature ◽  
Functional Responses ◽  
Aphid Control ◽  
Host Aphid ◽  
Predator Foraging

AbstractIn the current study, we investigated the functional response of Harmonia axyridis adults and larvae foraging on Acyrthosiphon pisum nymphs at temperatures between 15 and 35 °C. Logistic regression and Roger’s random predator models were employed to determine the type and parameters of the functional response. Harmonia axyridis larvae and adults exhibited Type II functional responses to A. pisum, and warming increased both the predation activity and host aphid control mortality. Female and 4th instar H. axyridis consumed the most aphids. For fourth instar larvae and female H. axyridis adults, the successful attack rates were 0.23 ± 0.014 h−1 and 0.25 ± 0.015 h−1; the handling times were 0.13 ± 0.005 h and 0.16 ± 0.004 h; and the estimated maximum predation rates were 181.28 ± 14.54 and 153.85 ± 4.06, respectively. These findings accentuate the high performance of 4th instar and female H. axyridis and the role of temperature in their efficiency. Further, we discussed such temperature-driven shifts in predation and prey mortality concerning prey-predator foraging interactions towards biological control.

Selection of entomopathogenic fungi for aphid control

2008 ◽  
Vol 136 ◽  
pp. S331
Author(s):  
Keun Kim ◽  
Van Hanh Vu ◽  
Suk Il Hong
Keyword(s):  
Entomopathogenic Fungi ◽  
Aphid Control ◽  
Selection Of
Sign in / Sign up

Export Citation Format

Share Document