Lethal and Sublethal Effects of Neonicotinoid Insecticides on the Adults of Phenacoccus solenopsis (Hemiptera: Pseudococcidae) on Tomato Plants

2019 ◽  
Vol 112 (3) ◽  
pp. 1314-1321 ◽  
Author(s):  
Muhammad Saad Waqas ◽  
Lixin Qian ◽  
Ali Ahmed Zaky Shoaib ◽  
Xinlai Cheng ◽  
Qianqian Zhang ◽  
...  
Keyword(s):  
Sublethal Effects ◽  
Phenacoccus Solenopsis ◽  
Tomato Plants ◽  
Neonicotinoid Insecticides

Sublethal effects of pyrethroid and neonicotinoid insecticides on Iphiseiodes zuluagai Denmark and Muma (Mesostigmata: Phytoseiidae)

Ecotoxicology ◽  
2017 ◽  
Vol 26 (9) ◽  
pp. 1188-1198 ◽  
Author(s):  
Odimar Zanuzo Zanardi ◽  
Gabriela Pavan Bordini ◽  
Aline Aparecida Franco ◽  
Cynthia Renata Oliveira Jacob ◽  
Pedro Takao Yamamoto
Keyword(s):  
Sublethal Effects ◽  
Neonicotinoid Insecticides

Toxicities and sublethal effects of seven neonicotinoid insecticides on survival, growth and reproduction of imidacloprid-resistant cotton aphid, Aphis gossypii

2011 ◽  
Vol 67 (12) ◽  
pp. 1528-1533 ◽  
Author(s):  
XiaoBin Shi ◽  
LiLi Jiang ◽  
HongYan Wang ◽  
Kang Qiao ◽  
Dong Wang ◽  
...  
Keyword(s):  
Sublethal Effects ◽  
Aphis Gossypii ◽  
Cotton Aphid ◽  
Neonicotinoid Insecticides ◽  
Growth And Reproduction

scholarly journals The sublethal effects of neonicotinoids on spiders are independent of their nutritional status

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Milan Řezáč ◽  
Nela Gloríková ◽  
Shawn M. Wilder ◽  
Petr Heneberg
Keyword(s):  
Protein Content ◽  
Carapace Length ◽  
Sublethal Effects ◽  
Wolf Spider ◽  
Acute Exposure ◽  
Spider Species ◽  
Neonicotinoid Insecticides ◽  
Behavioral Parameters ◽  
Dietary Treatments ◽  
Broad Scale

AbstractSpiders were recently shown to be adversely affected by field-realistic concentrations of a broad scale of neonicotinoid insecticides. Among the reported effects of neonicotinoids on invertebrates were declines in lipid biosynthesis and upregulation of β-oxidation, while vertebrate models suggest increased adipogenesis following treatment with neonicotinoids. Therefore, we hypothesized that there exists synergy between the effects of diet and concurrent exposure to field-realistic concentrations of neonicotinoid insecticides. To address this hypothesis, we fed first instars of the large wolf spider Hogna antelucana with two types of diets and exposed them to field-realistic concentrations of three formulations of neonicotinoids (thiamethoxam, thiacloprid and acetamiprid). We then measured the growth of the tested spiders; the lipid and protein content of their bodies; and their behavior, including ballooning, rappelling, and locomotor parameters. The two tested diets consisted of casein-treated and sucrose-treated Drosophila melanogaster. The dietary treatments affected the lipid and protein content of the spiders, their body weight and carapace length but did not affect any of the measured behavioral parameters. Surprisingly, we did not find any effects of acute exposure to neonicotinoid insecticides on the lipid or protein reserves of spiders. Exposure to neonicotinoids altered the behavior of the spiders as reported previously in other spider species; however, these effects were not affected by dietary treatments. Overall, the dietary treatments did not have any major synergy with acute exposure to field-realistic concentrations of neonicotinoid insecticides.

scholarly journals The cotton mealybug Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) as a new insect pest on tomato plants in Egypt

2015 ◽  
Vol 55 (1) ◽  
pp. 48-51 ◽  
Author(s):  
Samah Sayed Ibrahim ◽  
Fatma Abdelhalim Moharum ◽  
Nesreen Mohamed Abd El-Ghany
Keyword(s):  
Lycopersicon Esculentum ◽  
Insect Pest ◽  
First Record ◽  
Morphological Characters ◽  
Summer Season ◽  
Phenacoccus Solenopsis ◽  
Tomato Plants ◽  
Lycopersicon Esculentum Mill ◽  
Cotton Mealybug ◽  
New Pest

Abstract Recently, the mealybug Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) was recorded as a new pest on tomato plants (Lycopersicon esculentum Mill) growing in Egypt. The mealybugs specimens were collected from tomato plants in the Qalyoubia governorate during summer season of 2014. The mealybug was identified as P. solenopsis based on the morphological characters and taxonomic key of this species. This study represents the first record of P. solenopsis as a new insect pest attacking tomato plants in Egypt

scholarly journals Sublethal effects of the neonicotinoid insecticide thiamethoxam on the transcriptome of the honeybee (Apis mellifera)

2017 ◽  
Author(s):  
Teng-Fei Shi ◽  
Yu-Fei Wang ◽  
Lei Qi ◽  
Fang Liu ◽  
Lin-Sheng Yu
Keyword(s):  
Apis Mellifera ◽  
Molecular Mechanisms ◽  
Sublethal Effects ◽  
Enrichment Analysis ◽  
Neonicotinoid Insecticides ◽  
Complex Interactions ◽  
Go Enrichment ◽  
Oxidative Phosphorylation Pathway ◽  
Tyrosine Metabolism ◽  
Neonicotinoid Insecticide

AbstractNeonicotinoid insecticides are now the most widely used insecticides in the world. Previous studies have indicated that sublethal doses of neonicotinoids impair learning, memory capacity, foraging and immunocompetence in honeybees (Apis mellifera). Despite this, few studies have been carried out on the molecular effects of neonicotinoids. In this study, we focus on the second-generation neonicotinoid thiamethoxam, which is currently widely used in agriculture to protect crops. Using high-throughput RNA-Seq, we investigated the transcriptome profile of honeybees after subchronic exposure to thiamethoxam (10 ppb) over 10 days. In total, 609 differentially-expressed genes (DEGs) were identified, of which 225 were up-regulated and 384 were down-regulated. The functions of some DEGs were identified, and GO enrichment analysis showed that the enriched DEGs were mainly linked to metabolism, biosynthesis and translation. KEGG pathway analysis showed that thiamethoxam affected biological processes including ribosomes, the oxidative phosphorylation pathway, tyrosine metabolism pathway, pentose and glucuronate interconversions and drug metabolism. Overall, our results provide a basis for understanding the molecular mechanisms of the complex interactions between neonicotinoid insecticides and honeybees.Summary statementNR1, Cyp6as5, nAChRa9 and nAChRβ2 were up-regulated in honeybees exposed to thiamethoxam, while CSP3, Obp21, defensin-1, Mrjp1, Mrjp3 and Mrjp4 were down-regulated.

scholarly journals Assessment of Sublethal Effects of Neonicotinoid Insecticides on the Life‐History Traits of 2 Frog Species

2019 ◽  
Vol 38 (9) ◽  
pp. 1967-1977 ◽  
Author(s):  
S.A. Robinson ◽  
S.D. Richardson ◽  
R.L. Dalton ◽  
F. Maisonneuve ◽  
A.J. Bartlett ◽  
...  
Keyword(s):  
Life History ◽  
Life History Traits ◽  
Sublethal Effects ◽  
Neonicotinoid Insecticides ◽  
Frog Species

scholarly journals RFID Tracking of Sublethal Effects of Two Neonicotinoid Insecticides on the Foraging Behavior of Apis mellifera

PLoS ONE ◽  
2012 ◽  
Vol 7 (1) ◽  
pp. e30023 ◽  
Author(s):  
Christof W. Schneider ◽  
Jürgen Tautz ◽  
Bernd Grünewald ◽  
Stefan Fuchs
Keyword(s):  
Apis Mellifera ◽  
Foraging Behavior ◽  
Sublethal Effects ◽  
Neonicotinoid Insecticides

scholarly journals Neonicotinoid insecticides can serve as inadvertent insect contraceptives

2016 ◽  
Vol 283 (1835) ◽  
pp. 20160506 ◽  
Author(s):  
Lars Straub ◽  
Laura Villamar-Bouza ◽  
Selina Bruckner ◽  
Panuwan Chantawannakul ◽  
Laurent Gauthier ◽  
...  
Keyword(s):  
Sublethal Effects ◽  
Mechanistic Explanation ◽  
Reproductive Capacity ◽  
Pollinator Decline ◽  
Neonicotinoid Insecticides ◽  
Adult Body Mass ◽  
Honeybee Queen ◽  
Insect Pollinator ◽  
Prophylactic Use ◽  
Insect Reproduction

There is clear evidence for sublethal effects of neonicotinoid insecticides on non-target ecosystem service-providing insects. However, their possible impact on male insect reproduction is currently unknown, despite the key role of sex. Here, we show that two neonicotinoids (4.5 ppb thiamethoxam and 1.5 ppb clothianidin) significantly reduce the reproductive capacity of male honeybees (drones), Apis mellifera . Drones were obtained from colonies exposed to the neonicotinoid insecticides or controls, and subsequently maintained in laboratory cages until they reached sexual maturity. While no significant effects were observed for male teneral (newly emerged adult) body mass and sperm quantity, the data clearly showed reduced drone lifespan, as well as reduced sperm viability (percentage living versus dead) and living sperm quantity by 39%. Our results demonstrate for the first time that neonicotinoid insecticides can negatively affect male insect reproductive capacity, and provide a possible mechanistic explanation for managed honeybee queen failure and wild insect pollinator decline. The widespread prophylactic use of neonicotinoids may have previously overlooked inadvertent contraceptive effects on non-target insects, thereby limiting conservation efforts.

scholarly journals Sublethal effects on wood frogs chronically exposed to environmentally relevant concentrations of two neonicotinoid insecticides

2017 ◽  
Vol 36 (4) ◽  
pp. 1101-1109 ◽  
Author(s):  
Stacey A. Robinson ◽  
Sarah D. Richardson ◽  
Rebecca L. Dalton ◽  
France Maisonneuve ◽  
Vance L. Trudeau ◽  
...  
Keyword(s):  
Sublethal Effects ◽  
Wood Frogs ◽  
Neonicotinoid Insecticides
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