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https://www.readbyqxmd.com/read/28721608/a-new-light-trap-model-as-an-alternative-for-controlling-pests-in-eucalyptus-plantations
#1
R G Mafia, E B Loureiro, J B Silva, J A C Simões, T G Zarpelon, N S Bezerra Junior, M B Damacena
Eucalyptus plantations can be affected by species of defoliating caterpillars. The integrated management of this group primarily involves a monitoring system, natural enemies, and biological products. Alternative control methods, including the use of conventional light traps, have not been adopted, mostly because of their low efficiency. Therefore, a more efficient light trap model was developed. The new model allowed the capture of 3.6 times as many insects as the conventional model, with a 261% gain in control efficiency...
July 18, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28713403/time-dependent-trapping-of-pollinators-driven-by-the-alignment-of-floral-phenology-with-insect-circadian-rhythms
#2
Jenny Y Y Lau, Xing Guo, Chun-Chiu Pang, Chin Cheung Tang, Daniel C Thomas, Richard M K Saunders
Several evolutionary lineages in the early divergent angiosperm family Annonaceae possess flowers with a distinctive pollinator trapping mechanism, in which floral phenological events are very precisely timed in relation with pollinator activity patterns. This contrasts with previously described angiosperm pollinator traps, which predominantly function as pitfall traps. We assess the circadian rhythms of pollinators independently of their interactions with flowers, and correlate these data with detailed assessments of floral phenology...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28710446/the-movement-of-small-insects-in-the-convective-boundary-layer-linking-patterns-to-processes
#3
Charlotte E Wainwright, Phillip M Stepanian, Don R Reynolds, Andy M Reynolds
In fine warm weather, the daytime convective atmosphere over land areas is full of small migrant insects, among them serious pests (e.g. some species of aphid), but also many beneficial species (e.g. natural enemies of pests). For many years intensive aerial trapping studies were the only way of determining the density profiles of these small insects, and for taxon-specific studies trapping is still necessary. However, if we wish to determine generic behavioural responses to air movements shown by small day-migrating insects as a whole, the combination of millimetre-wavelength 'cloud radars' and Doppler lidar now provides virtually ideal instrumentation...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28692174/effects-of-pyriproxifen-on-wild-populations-of-the-house-fly-musca-domestica-and-compatibility-with-its-principal-parasitoids
#4
Haim Biale, Christopher J Geden, Elad Chiel
BACKGROUND: The house fly, Musca domestica L., is an important pest of animal agriculture. Effective fly management requires integration of manure management, mass trapping, biological control, and selective insecticide use. Insecticidal control of house flies is difficult due to the rapidity of resistance development, yet the insect growth regulator pyriproxyfen (PPF) is one of few insecticides that may still be effective. Here, we tested the susceptibility of four wild house fly populations in the USA and in Israel to PPF, as well as the effect of PPF on house fly parasitoids of the genera Muscidifurax and Spalangia...
July 10, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28689277/identification-of-the-aggregation-sex-pheromone-produced-by-male-monochamus-saltuarius-a-major-insect-vector-of-the-pine-wood-nematode
#5
Hyo-Rim Lee, Sung-Chan Lee, Dong Ha Lee, Won-Sil Choi, Chan-Sik Jung, Jae-Ho Jeon, Jeong-Eun Kim, Il-Kwon Park
In this study, we isolated and identified an aggregation-sex pheromone from Monochamus saltuarius, the major insect vector of the pine wood nematode in Korea. Adult males of M. saltuarius produce 2-undecyloxy-1-ethanol, which is known as an aggregation-sex pheromone in other Monochamus species. We performed field experiments to determine the attractiveness of the pheromone and other synergists. More M. saltuarius adult beetles were attracted to traps baited with the pheromone than to unbaited traps. Ethanol and (-)-α-pinene interacted synergistically with the pheromone...
July 8, 2017: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/28672808/ecosystem-based-incorporation-of-nectar-producing-plants-for-stink-bug-parasitoids
#6
REVIEW
Glynn Tillman
Adult parasitoids of pest insects rely on floral resources for survival and reproduction, but can be food-deprived in intensively managed agricultural systems lacking these resources. Stink bugs are serious pests for crops in southwest Georgia. Provisioning nectar-producing plants for parasitoids of stink bugs potentially can enhance biocontrol of these pests. Knowledge of spatial and temporal availability and distribution of stink bugs in host plants is necessary for appropriate timing and placement of flowering plants in agroecosystems...
June 24, 2017: Insects
https://www.readbyqxmd.com/read/28647127/infrared-light-detection-by-the-haller-s-organ-of-adult-american-dog-ticks-dermacentor-variabilis-ixodida-ixodidae
#7
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...
August 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28640580/a-bioinspired-alginate-gum-arabic-hydrogel-with-micro-nanoscale-structures-for-controlled-drug-release-in-chronic-wound-healing
#8
Mi Li, Haichang Li, Xiangguang Li, Hua Zhu, Zihui Xu, Lianqing Liu, Jianjie Ma, Mingjun Zhang
Biopolymeric hydrogels have drawn increasing research interest in biomaterials due to their tunable physical and chemical properties for both creating bioactive cellular microenvironment 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 bioinspired hydrogel to deliver mitsugumin 53 (MG53), an important protein in cell membrane repair, for chronic wound healing. Both chemical compositions and micro-/nanomorphological properties inherent from the natural Sundew hydrogel were mimicked using sodium alginate and gum arabic with calcium ion-mediated cross-linking...
July 12, 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
#9
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
#10
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
#11
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
#12
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 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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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