Sublethal Effects of Chronic Exposure to Tebufenozide on the Development, Survival, and Reproduction of the Tufted Apple Bud Moth (Lepidoptera: Tortricidae)

2006 ◽  
Vol 99 (3) ◽  
pp. 834-842 ◽  
Author(s):  
D. Biddinger ◽  
L. Hull ◽  
H. Huang ◽  
B. Mcpheron ◽  
M. Loyer
Keyword(s):  
Chronic Exposure ◽  
Sublethal Effects ◽  
Tufted Apple Bud Moth ◽  
Survival And Reproduction

scholarly journals Lethal and Sublethal Effects of Imidacloprid, After Chronic Exposure, On the Insect ModelDrosophila melanogaster

2014 ◽  
Vol 48 (7) ◽  
pp. 4096-4102 ◽  
Author(s):  
Gaël Charpentier ◽  
Fanny Louat ◽  
Jean-Marc Bonmatin ◽  
Patrice A. Marchand ◽  
Fanny Vanier ◽  
...  
Keyword(s):  
Chronic Exposure ◽  
Sublethal Effects

Lethal and sublethal effects of insecticides on the survival and reproduction of Brevipalpus yothersi (Acari: Tenuipalpidae)

2021 ◽  
Author(s):  
Jaqueline Franciosi Della Vechia ◽  
Odimar Zanuzo Zanardi ◽  
Ana Beatriz Piai Kapp ◽  
Renato Beozzo Bassanezi ◽  
Daniel Júnior de Andrade
Keyword(s):  
Sublethal Effects ◽  
Survival And Reproduction

Sublethal effects of chronic exposure to CdO or PbO nanoparticles or their binary mixture on the honey bee (Apis millefera L.)

2018 ◽  
Vol 27 (16) ◽  
pp. 19004-19015 ◽  
Author(s):  
Yahya AL Naggar ◽  
Khaled Dabour ◽  
Saad Masry ◽  
Ahmed Sadek ◽  
Elsaied Naiem ◽  
...  
Keyword(s):  
Binary Mixture ◽  
Honey Bee ◽  
Chronic Exposure ◽  
Sublethal Effects ◽  
Pbo Nanoparticles

scholarly journals The Effect of Chronic Exposure to Artificial UVB Radiation on the Survival and Reproduction ofDaphnia magnaAcross Two Generations

2009 ◽  
Vol 85 (1) ◽  
pp. 374-378 ◽  
Author(s):  
Judith D. Huebner ◽  
Nancy L. Loadman ◽  
Murray D. Wiegand ◽  
Donna L. W. Young ◽  
Laura-Anne Warszycki
Keyword(s):  
Chronic Exposure ◽  
Uvb Radiation ◽  
Two Generations ◽  
Survival And Reproduction

scholarly journals Sublethal Effects of Spinosad (Tracer®) on the Cotton Leafworm (Lepidoptera: Noctuidae)

2013 ◽  
Vol 53 (3) ◽  
pp. 275-284 ◽  
Author(s):  
Gamal Elsayed Abouelghar ◽  
Hanem Sakr ◽  
Hager Ali Ammar ◽  
Adel Yousef ◽  
Moustafa Nassar
Keyword(s):  
Sublethal Effects ◽  
Histological Study ◽  
Residual Activity ◽  
Pupal Weight ◽  
Food Utilization ◽  
Cotton Leafworm ◽  
Survival And Reproduction ◽  
Field Plots ◽  
Lepidoptera Noctuidae ◽  
Histopathological Effects

Abstract The effects of sublethal concentrations of spinosad (Tracer®) on development, fecundity, and food utilization, in the cotton leafworm, Spodoptera littoralis (Boisd.) were investigated. The fourth-instar larvae were fed on castor bean leaves treated with LC25 (13.9 ppm) or LC50 (57.8 ppm) of spinosad. Pupation and pupal weight were significantly reduced in both LC25 and LC50 treatments, compared with those of the controls. The fecundity rates of females in either LC25 or LC50 treatment were also reduced, compared with the controls. The residual activity of spinosad, applied on cotton at labeled field- and subfield-rates (200 and 70 g active substance (a.s.)/ 200 l water, respectively), was examined against the fifth-instar larvae of S. littoralis. Feeding deterrent effects were significantly demonstrated in larvae that fed on leaves collected from field plots with residual deposits of spinosad at 3 and 7 days old after application (DAA). The residual activity of spinosad on feeding and other metabolic parameters was decreased after 21 DAA indicating that the chemical started to degrade under field conditions. A histological study on midgut from larvae that previously fed on leaves treated with a concentration corresponding to the labeled-field rate of spinosad showed some alterations occurred after 48 and 96 h of treatment, compared to the normal midgut from the controls. The histological alterations included degeneration in the epithelial lining of the midgut and in the peritrophic matrix. Such histopathological effects are presumed to be responsible for the reduction in growth and food utilization caused by spinosad. It is, therefore, concluded that spinosad has sublethal effects on S. littoralis that may affect population dynamics in the field via reductions in survival and reproduction

Sublethal Effects of Tetrachloroguaiacol on Juvenile Rainbow Trout, Oncorhynchus mykiss, following Acute and Chronic Exposure

1994 ◽  
Vol 51 (9) ◽  
pp. 1967-1974 ◽  
Author(s):  
J. A. Johansen ◽  
C. J. Kennedy ◽  
R. M. Sweeting ◽  
A. P. Farrell ◽  
B. A. McKeown
Keyword(s):  
Disease Resistance ◽  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Chronic Exposure ◽  
Plasma Cortisol ◽  
Sublethal Effects ◽  
Swimming Performance ◽  
Juvenile Rainbow Trout ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Acute And Chronic Exposure

Following either a 24-h (acute) or 25-d (chronic) exposure to tetrachloroguaiacol (TeCG), a component of bleached kraft mill effluent (BKME), juvenile rainbow trout, Oncorhynchus mykiss, were examined for effects on several biochemical parameters, swimming performance, and disease resistance. Acute exposure resulted in increased levels of plasma cortisol and lactate and reductions in liver glycogen and protein, spleen somatic index, leucocrit, hemoglobin, swimming performance, and disease resistance. Chronic exposure resulted in most parameters remaining at control levels with the exception of leucocrit which was elevated, plasma cortisol which decreased, and disease resistance which was impaired. These findings correlate well with a previously proposed classic stress response for mammals and are generally consistent with studies in which fish were exposed to whole BKME. The 96-h LC50 for juvenile rainbow trout exposed to TeCG was estimated at 0.37 mg∙L−1.

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