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https://www.readbyqxmd.com/read/28647127/infrared-light-detection-by-the-haller-s-organ-of-adult-american-dog-ticks-dermacentor-variabilis-ixodida-ixodidae
#1
Robert D Mitchell, Jiwei Zhu, Ann L Carr, Anirudh Dhammi, Grayson Cave, Daniel E Sonenshine, R Michael Roe
The Haller's organ (HO), unique to ticks and mites, is found only on the first tarsus of the front pair of legs. The organ has an unusual morphology consisting of an anterior pit (AP) with protruding sensilla and a posterior capsule (Cp). The current thinking is that the HO's main function is chemosensation analogous to the insect antennae, but the functionality of its atypical structure (exclusive to the Acari) is unexplained. We provide the first evidence that the HO allows the American dog tick, Dermacentor variabilis, to respond to infrared (IR) light...
June 13, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28640580/a-bio-inspired-alginate-gum-arabic-hydrogel-with-micro-nano-scale-structures-for-controlled-drug-release-in-chronic-wound-healing
#2
Mi Li, Haichang Li, Xiangguang Li, Hua Zhu, Zihui Xu, Lianqing Liu, Jianjie Ma, Mingjun Zhang
Bio-polymeric hydrogels have drawn increasingly research interests in biomaterials due to its tunable physical and chemical properties for both creating bioactive cellular micro-environment and serving as sustainable therapeutic reagents. Inspired by a naturally occurring hydrogel secreted from the carnivorous Sundew plant for trapping insects, here we have developed a bio-inspired hydrogel to deliver mitsugumin53 (MG53), an important protein in cell membrane repair, for chronic wound healing. Both chemical compositions and micro/nano morphological properties inherent from the natural Sundew hydrogel were mimicked using sodium alginate and gum arabic with calcium ion-mediated cross-linking...
June 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28612699/coffee-berry-borer-in-conilon-coffee-in-the-brazilian-cerrado-an-ancient-pest-in-a-new-environment
#3
C M Oliveira, M J Santos, R F Amabile, M R Frizzas, G F Bartholo
The aim of this study was to verify the occurrence of the coffee berry borer, Hypothenemus hampei (Ferrari), and to evaluate the population fluctuation of the pest in the Brazilian Cerrado (Federal District). The study was conducted, between November 2014 and October 2015, at Embrapa Cerrados (Planaltina/DF, Brazil) in an irrigated conilon coffee production area. In November 2014, 120 samples (ten berries/sample) were collected from berries that had fallen on the ground from the previous harvest. Between November 2014 and October 2015, insects were collected weekly, using traps (polyethylene terephthalate bottles) baited with ethyl alcohol (98 GL), ethyl alcohol (98 GL) with coffee powder, or molasses...
June 14, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28610183/melittofauna-and-other-potential-pollinators-in-wetland-and-uplands-in-south-central-nebraska-insecta-apoidea
#4
Cynthia N Park, Lisa M Overall, Loren M Smith, Ted Lagrange, Scott McMurry
Our objective was to document potential wild pollinating insects in south central Nebraska. This intensively cultivated region is known as the Rainwater Basin and contains some of the most endangered wetland systems in North America. We used blue vane traps to passively collect insects and insect nets to actively collect on flowering plants from April through October in 2014 and 2015. Habitat types included playa wetlands, adjacent mixed and tallgrass prairies, and agricultural fields. Over 112,000 insects were collected; Hymenoptera represented 78% of the total, and the families Apidae and Halictidae comprised 99% of the total melittofauna...
March 10, 2017: Zootaxa
https://www.readbyqxmd.com/read/28605128/tiny-insects-against-the-weather-flight-and-foraging-patterns-of-frankliniella-schultzei-thripidae-not-altered-by-onset-of-rainfall
#5
Lachlan C Jones, Brodie J Foster, Michelle A Rafter, Gimme H Walter
To survive in nature, organisms may need to take direct action to mitigate specific dangers from their environmental surroundings. Tiny flying insects are thought to be at particular risk from rainfall that would be of negligible concern to larger animals. The study species Frankliniella schultzei is a thrips that inhabits flowers and feeds mostly on petal tissue and pollen. While found to respond in the laboratory to decreases in atmospheric pressure associated with cyclonic conditions (rather than merely heavy rainfall), their responses to conditions preceding rainfall have not been tested in the field...
June 12, 2017: Insect Science
https://www.readbyqxmd.com/read/28601940/the-male-produced-aggregation-pheromone-of-a-strawberry-sap-beetle-lobiopa-insularis-coleoptera-nitidulidae
#6
Antonioni A C Moliterno, Camila B C Martins, Daiane Szczerbowski, Maria Aparecida C Zawadneak, Paulo H G Zarbin
The nitidulid beetle Lobiopa insularis is an important pest of strawberry crops in the United States and Brazil. Both larvae and adults feed on ripe strawberries, causing 20-70% loss in production during serious infestations. Aiming at the development of efficient, clean, and highly specific pest management systems, semiochemicals, especially pheromones, are particularly useful. Analyses of the extracts of both males and females obtained from aeration of live beetles showed the presence of three male specific compounds, 2-nonanone, 2-undecanone, and 2-undecanol (in an enantiomeric ratio of S:R = 3...
June 10, 2017: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/28593838/attractiveness-of-black-and-white-modified-shannon-traps-to-phlebotomine-sandflies-diptera-psychodidae-in-the-brazilian-amazon-basin-an-area-of-intense-transmission-of-american-cutaneous-leishmaniasis
#7
Andreia Fernandes Brilhante, Márcia Moreira de Ávila, Jailson Ferreira de Souza, Antônio Ralph Medeiros-Sousa, Priscila Bassan Sábio, Marcia Bicudo de Paula, Rodrigo Espindola Godoy, Leonardo Augusto Kohara Melchior, Vânia Lúcia Brandão Nunes, Cristiane de Oliveira Cardoso, Eunice Aparecida Bianchi Galati
In the Amazon region the phlebotomine fauna is considered one of the most diverse in the world. The use of Shannon traps may provide information on the anthropophily of the species and improve the traps' performance in terms of diversity and quantity of insects collected when white and black colored traps are used together. This study sought to verify the attractiveness of the traps to the phlebotomine species of the Brazilian Amazon basin using Shannon traps under these conditions. The insects were collected using two Shannon traps installed side by side, one white and the other black, in a primary forest area of the municipality of Xapuri, Acre, Brazil...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28590217/field-evaluation-of-indoor-thermal-fog-and-ultra-low-volume-applications-for-control-of-aedes-aegypti-in-thailand
#8
A Ponlawat, J F Harwood, J L Putnam, C Nitatsukprasert, A Pongsiri, U Kijchalao, K J Linthicum, D L Kline, G G Clark, P J Obenauer, C W Doud, P W Mccardle, A G Richardson, D E Szumlas, J H Richardson
Efficacies of a handheld thermal fogger (Patriot™) and a backpack ultra-low volume (ULV) sprayer (Twister™) with combinations of 2 different adulticides (pyrethrin, deltamethrin) and an insect growth regulator (pyriproxyfen) were field-tested and compared for their impact on reducing indoor Aedes aegypti populations in Thailand. The effectiveness of the indoor space sprays was evaluated by sampling the natural Ae. aegypti population in houses and determining their physiological status, by monitoring mortality of sentinel caged mosquitoes (AFRIMS strain) and by assessing larval mortality in laboratory bioassays using water exposed to the spray...
June 2017: Journal of the American Mosquito Control Association
https://www.readbyqxmd.com/read/28586352/the-specific-host-plant-dna-detection-suggests-a-potential-migration-of-apolygus-lucorum-from-cotton-to-mungbean-fields
#9
Qian Wang, Wei-Fang Bao, Fan Yang, Bin Xu, Yi-Zhong Yang
The polyphagous mirid bug Apolygus lucorum (Heteroptera: Miridae) has more than 200 species of host plants and is an insect pest of important agricultural crops, including cotton (Gossypium hirsutum) and mungbean (Vigna radiata). Previous field trials have shown that A. lucorum adults prefer mungbean to cotton plants, indicating the considerable potential of mungbean as a trap crop in cotton fields. However, direct evidence supporting the migration of A. lucorum adults from cotton to mungbean is lacking. We developed a DNA-based polymerase chain reaction (PCR) approach to reveal the movement of A...
2017: PloS One
https://www.readbyqxmd.com/read/28541568/effect-of-feeding-history-and-time-elapsed-from-field-collection-on-the-movement-behavior-and-response-to-stimulation-in-cimex-lectularius-hemiptera-cimicidae
#10
Desen Wang, Changlu Wang, Narinderpal Singh, Amanda L Eiden, Richard Cooper, Chen Zha
The common bed bug (Cimex lectularius L.) (Hemiptera: Cimicidae) is an obligate blood-sucking insect that has been resurging in many countries. Researching this pest's behavior will help design more effective control methods. In this study, we evaluated the effect of feeding history and time elapsed from field collection on bed bug movement behavior and response to chemical lure or carbon dioxide stimulation in the laboratory. After CO2 was released, bed bugs unfed for 3 d began to return to harborages; in contrast, the ones unfed for 2 and 4 wk spent significantly more time outside their harborages during the first 1 h after than the 1 h before CO2 release...
May 25, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28541523/attraction-of-the-euwallacea-sp-near-fornicatus-coleoptera-curculionidae-to-quercivorol-and-to-infestations-in-avocado
#11
John A Byers, Yonatan Maoz, Anat Levi-Zada
The Euwallacea sp. near fornicatus (Euwallacea sp. 1 hereafter) feeds on many woody shrubs and trees and is a pest of avocado, Persea americana Mill., in several countries including Israel and the United States. Quercivorol baits are commercially available for Euwallacea sp. 1 females (males do not fly), but their attractive strength compared to other pheromones and potential for mass trapping are unknown. We used sticky traps baited with quercivorol released at 0.126 mg/d (1×) and at 0.01×, 0.1×, and 10× relative rates to obtain a dose-response curve of Euwallacea sp...
May 24, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28529881/iso-seq-analysis-of-nepenthes-ampullaria-nepenthes-rafflesiana-and-nepenthes%C3%A2-%C3%A3-%C3%A2-hookeriana-for-hybridisation-study-in-pitcher-plants
#12
Muhammad Mu'izzuddin Zulkapli, Muhammad Aqil Fitri Rosli, Faris Imadi Mohd Salleh, Normah Mohd Noor, Wan Mohd Aizat, Hoe-Han Goh
Tropical pitcher plants in the species-rich Nepenthaceae family of carnivorous plants possess unique pitcher organs. Hybridisation, natural or artificial, in this family is extensive resulting in pitchers with diverse features. The pitcher functions as a passive insect trap with digestive fluid for nutrient acquisition in nitrogen-poor habitats. This organ shows specialisation according to the dietary habit of different Nepenthes species. In this study, we performed the first single-molecule real-time isoform sequencing (Iso-Seq) analysis of full-length cDNA from Nepenthes ampullaria which can feed on leaf litter, compared to carnivorous Nepenthes rafflesiana, and their carnivorous hybrid Nepenthes × hookeriana...
June 2017: Genomics Data
https://www.readbyqxmd.com/read/28527250/-risk-of-transmission-of-chagas-disease-by-intrusion-of-triatomines-and-wild-mammals-in-bucaramanga-santander-colombia
#13
Marlene Reyes, Ángela Torres, Lyda Esteban, Mónica Flórez, Víctor Manuel Angulo
INTRODUCTION: Notice of triatomines in dwellings of some neighborhoods in Bucaramanga motivated the realization of this study.Objetive: To evaluate the intrusion of triatomines and mammals, as well as some risk factors in urban dwellings. MATERIALS AND METHODS: Triatomines were collected in a neighborhood in Bucaramanga, Santander, on a monthly basis during one year with participation of the community. Collection included manual search in lamp posts, use of light traps, animal bait, and chemical attractants in nearby forests...
January 24, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28520950/a-novel-economical-way-to-assess-virulence-in-field-populations-of-hessian-fly-diptera-cecidomyiidae-utilizing-wheat-resistance-gene-h13-as-a-model
#14
Alisha J Johnson, Hossam E M Abdel Moniem, Kathy L Flanders, G David Buntin, Francis P F Reay-Jones, Dominic Reisig, Jeffery J Stuart, Subhashree Subramanyam, Richard H Shukle, Brandon J Schemerhorn
Mayetiola destructor (Say) is a serious pest of wheat, Triticum aestivum L., in North America, North Africa, and Central Asia. Singly deployed resistance genes in wheat cultivars have provided effective management of Hessian fly populations for >50 yr. Thirty-five H genes have been documented. Defense mediated by the H gene constitutes strong selection on the Hessian fly population, killing 100% of larvae. A mutation in a matching Hessian fly avirulence gene confers virulence to the H gene, leading to survival on the resistant plant...
May 17, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28512035/the-predatory-behavior-of-the-neotropical-social-wasp-polybia-rejecta
#15
Alain Dejean, Héctor Rodríguez-Pérez, James M Carpenter, Frédéric Azémar, Bruno Corbara
We experimentally studied the predatory behavior of Polybia rejecta (Vespidae, Polistinae, Epiponini) towards 2-88 mm-long insects attracted to a UV light trap. Foragers, which began to hunt at 6:30, selected 4-14 mm-long prey insects. Prey detection by sight by hovering wasps was confirmed using decoys. After the wasps landed and walked along a sinuous path, prey were detected by contact or from a distance (1-3cm). This was followed by seizure, stinging (contrarily to most other known cases), prey manipulation and retrieval...
May 13, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28505274/migration-analysis-of-sogatella-furcifera-hemiptera-delphacidae-in-the-northeastern-hunan-province-in-june
#16
Mingyong Ma, Yan Wu, Zhaopu Peng, Xin Zhao, Yi Zhang, Guoan Liao, Baoping Zhai
The Sogatella furcifera (Horváth) is a notorious and destructive insect pest, targeting >4 million hectares of rice cultivated in the Hunan Province. To understand the immigration dynamics, we collected S. furcifera light trap catches from 2006 to 2012 at Niangxiang, Linxiang, and Hanshou. We conducted a migration analysis to estimate the immigration source for the northeastern Hunan Province in June. Moreover, we dissected the ovaries of S. furcifera to classify population characteristics. We found that the first appearance of S...
May 13, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28505265/the-influence-of-the-topography-of-the-ailao-mountains-on-congregated-landings-of-airborne-sogatella-furcifera-hemiptera-delphacidae-populations
#17
Yan Wu, Xi-Jie Li, Xiao Chen, Gao Hu, Yan-Yue Hu, Kai Xiong, Guo Zhang, Jian Zhu, Shao-Lei Chen, Ming-Hong Lu, Ai-Dong Chen, Bao-Ping Zhai
The Sogatella furcifera (Horváth) is an important migrating rice pest whose outbreak may be caused by large-scale congregated landings. Hitherto, the meteorological factors that influence congregated landings were thought to be rainfall and downdraft. However, for migratory insects on a plateau, low temperature may be another key factor leading to congregated landings. However, no reports have been published. Therefore, this paper evaluates the reason for a large-scale congregated landing in the mountainous area in Yuanjiang via light trap monitoring...
May 11, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28490389/monitoring-and-mass-trapping-methodologies-using-pheromones-the-lesser-date-moth-batrachedra-amydraula
#18
A Levi-Zada, A Sadowsky, S Dobrinin, T Ticuchinski, M David, D Fefer, E Dunkelblum, J A Byers
The lesser date moth (LDM) Batrachedra amydraula is a significant pest of date palm fruits. Previously, detection and monitoring of the pest was inaccurate due to high costs of sampling with lifting machines. We report a practical system for detection and monitoring of LDM based on pheromone traps and relevant models. Dose-response experiments with LDM pheromone traps indicated a 1 mg lure is optimal for monitoring. Delta traps with adhesive covering their entire inner surface gave the highest captures while trap colour was unimportant...
May 11, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28485252/interspecific-interactions-in-solitary-aculeata-is-the-presence-of-heterospecifics-important-for-females-establishing-nests
#19
J Kierat, K Miler, W Celary, M Woyciechowski
There are several possible causes of aggregated nesting in solitary Aculeata, one being joint defense against parasites. We tested whether females prefer nesting in aggregations, even if they consist of heterospecifics. We compared the colonization and nesting parasitism of trap-nests with and without a red mason bee aggregation. The results did not support our hypothesis that females prefer nesting in aggregations. The numbers of wild Aculeata nests did not differ between trap-nests with and without an aggregation...
May 9, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28459960/diversity-of-platygastridae-in-leaf-litter-and-understory-layers-of-tropical-rainforests-of-the-western-ghats-biodiversity-hotspot-india
#20
K Manoj, T P Rajesh, U Prashanth Ballullaya, K M Meharabi, V K Shibil, K Rajmohana, Palatty Allesh Sinu
Platygastridae is the third largest family of parasitic Hymenoptera in the world. It includes important egg and larval parasitoids of insects and spiders. Therefore, Platygastridae is functionally important in maintaining the stability of tropical rainforests and agroecosystems. Although the diversity of Platygastridae is relatively well-known in agroecosystems, we know little about their diversity in tropical rainforests, and particularly about that of the leaf litter layer. Here, we address the importance of monitoring Platygastridae in tropical rainforests, using data from the relic primary forests of the sacred groves of the Western Ghats...
June 1, 2017: Environmental Entomology
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