New Afrotropical scale insect pests (Homoptera: Coccinea) under glass in St Petersburg, Russia

2016 ◽  
Vol 25 (2) ◽  
pp. 233-238 ◽  
Author(s):  
I.A. Gavrilov-Zimin ◽  
D.A. Gapon
Keyword(s):  
Reproductive Biology ◽  
Insect Pests ◽  
Scale Insect ◽  
Insect Species ◽  
Chromosomal Number ◽  
First Time

Two Afrotropical scale insect species, Trochiscococcus speciosus (De Lotto, 1961) and Ripersiella aloes (Williams et Pellizzari, 1997), are recorded for the first time in Russia, St Petersburg, under glass on the roots of Gasteria sp. (Asphodelaceae). The first species is morphologically described and illustrated by a standard total coccidological figure and by the photograph; a study of the reproductive biology of this species revealed an obligate ovoviviparity, parthenogenesis (thelytoky) and the chromosomal number 2n=10. The quarantine status for both species is advised on the territory of Russia and neighbouring countries.

scholarly journals First record of Anselmella malacia Xiao & Huang, 2006 (Hymenoptera: Eulophidae), a new insect pest of water apple (Syzygium samarangense) and its associated parasitoid in Dong Thap Province, Vietnam

2019 ◽  
Vol 41 (4) ◽  
Author(s):  
Nguyen Thi Oanh ◽  
Nguyen Kim Bup ◽  
Khuat Dang Long
Keyword(s):  
Insect Pests ◽  
Insect Pest ◽  
First Record ◽  
Insect Species ◽  
Invasive Pest ◽  
South Vietnam ◽  
Pest Insects ◽  
Parasitoid Assemblage ◽  
First Time

 The eulophid wasp, Anselmella malacia Xiao & Huang, 2006 (Hymenoptera: Eulophidae), is reared from fruits of the water apple, Syzygium samarangense, and is reported as an important phytophagous developing as seed-eaters of Syzygium species in Malaysia. Analysing specimens of pest insects infested inside of pear-shaped fruits of the cultivated water apple, S. samarangense, in Dong Thap Province, South Vietnam, a total of four insect species were recorded as the important pests for fruits of six varieties of the cultivated water apples. The hymenoteran wasp, A. malacia, is recorded for the first time from Vietnam. Further evidence is needed to prove A. malacia being an invasive pest in Vietnam. The associated hymenopteran parasitoid assemblage with the fruit infested insect pests is also provided. 

scholarly journals Coccidae, Pseudococcidae, Ortheziidae, and Monophlebidae (Hemiptera: Coccoidea) of Espírito Santo, Brazil

2007 ◽  
Vol 7 (3) ◽  
pp. 61-65 ◽  
Author(s):  
Mark Paul Culik ◽  
David dos Santos Martins ◽  
José Aires Ventura ◽  
Ana Lúcia Benfatti Gonzalez Peronti ◽  
Penny Jean Gullan ◽  
...  
Keyword(s):  
First Record ◽  
Scale Insect ◽  
Scale Insects ◽  
Insect Species ◽  
Espírito Santo ◽  
Pseudococcus Longispinus ◽  
Coccus Viridis ◽  
Phenacoccus Madeirensis ◽  
Espirito Santo ◽  
First Time

New plant hosts are recorded for nine scale insect species recently collected in Espírito Santo, Brazil, and eleven scale insect species are recorded for the first time from the state: Ceroplastes floridensis Comstock, Coccus longulus (Douglas), Coccus viridis (Green), Eucalymnatus tesselatus (Signoret), Pseudokermes sp., Saissetia coffeae (Walker), Phenacoccus madeirensis Green, Pseudococcus jackbeardsleyi Gimpel & Miller, Pseudococcus longispinus (Targioni Tozzetti), Icerya purchasi Maskell, and Icerya genistae Hempel. This is also the first record of Co. longulus in Brazil. Information on the host plants and geographic distribution of the 26 species of scale insects of the families Coccidae, Pseudococcidae, Ortheziidae, and Monophlebidae, currently known from Espírito Santo is provided.

scholarly journals Review of the direct and indirect effects of warming and drought on scale insect pests of forest systems

2020 ◽  
Author(s):  
Steven D Frank
Keyword(s):  
Population Growth ◽  
Natural Enemies ◽  
Indirect Effects ◽  
Insect Pests ◽  
Scale Insect ◽  
Interactive Effects ◽  
Scale Insects ◽  
Insect Species ◽  
Direct And Indirect Effects ◽  
Tree Quality

Abstract Higher temperatures and drought are key aspects of global change with the potential to alter the distribution and severity of many arthropod pests in forest systems. Scale insects (Hemiptera: Coccoidea) infest many tree species and are among the most important pests of trees in urban and rural forests, plantations and other forest systems. Infestations of native or exotic scale insects can kill or sicken trees with economic and ecosystem-wide consequences. Warming can have direct effects on the life history, fitness and population dynamics of many scale insect species by increasing development rate, survival or fecundity. These direct benefits can increase the geographic distribution of scale insects and their consequences for tree health. Warming and drought can affect scale insects indirectly by altering the quality of their host trees. Additive or interactive effects of warming and drought can change tree quality in such a way that it increases scale insect fitness and population growth. However, the effects are species- and context-dependent with some scale insect species negatively affected by drought-induced changes in tree quality. Warming and drought are often coincident in urban forests and predicted to co-occur in many parts of the world under climate change scenarios. The individual and interactive effects of these factors require further research to inform predictions and management of scale insect pests. Warming also indirectly affects scale insects by altering interactions with natural enemies. This includes changes in natural enemy phenology, community composition and abundance. In addition, warming can alter scale insect phenology or voltinism causing asynchrony with natural enemies or population growth too rapid for natural enemies to suppress. Direct and indirect effects of warming and drought on scale insects can increase the potential for some exotic species to become established and for some native species to become invasive. Unfortunately, much research on scale insects is confined to a few particularly important native or exotic pests which limits our ability to predict the effects of warming on many current or potential pests. More research is required to understand how warming and drought affect scale insects, scale insect management and the forest systems they inhabit.

scholarly journals First Description of the Adult Male of the Gall-Like Scale Insect Allokermes galliformis (Riley) (Hemiptera: Coccomorpha: Kermesidae)

Insects ◽  
2019 ◽  
Vol 10 (8) ◽  
pp. 250
Author(s):  
Kyle D. Krutil ◽  
Alison L. Hall ◽  
Whitney S. Cranshaw ◽  
Boris C. Kondratieff ◽  
Rachael A. Sitz
Keyword(s):  
United States ◽  
Adult Male ◽  
United States Of America ◽  
Morphological Characteristics ◽  
Scale Insect ◽  
Insect Species ◽  
Causative Role ◽  
Red Oaks ◽  
Blight Disease ◽  
First Time

The adult male of Allokermes galliformis (Riley, 1881) (Hemiptera: Coccomorpha: Kermesidae) is described for the first time in Colorado, United States of America. This scale insect species recently emerged as a significant pest of red oaks in Colorado through its causative role in drippy blight disease. A description and illustration of the adult male characterize its key external morphological characteristics.

scholarly journals First record of Anselmella malacia Xiao & Huang, 2006 (Hymenoptera: Eulophidae), a new insect pest of water apple (Syzygium samarangense) and its associated parasitoid in Dong Thap Province, Vietnam

2019 ◽  
Vol 41 (4) ◽  
Author(s):  
Nguyen Thi Oanh ◽  
Nguyen Kim Bup ◽  
Khuat Dang Long
Keyword(s):  
Insect Pests ◽  
Insect Pest ◽  
First Record ◽  
Insect Species ◽  
Invasive Pest ◽  
South Vietnam ◽  
Pest Insects ◽  
Parasitoid Assemblage ◽  
First Time

 The eulophid wasp, Anselmella malacia Xiao & Huang, 2006 (Hymenoptera: Eulophidae), is reared from fruits of the water apple, Syzygium samarangense, and is reported as an important phytophagous developing as seed-eaters of Syzygium species in Malaysia. Analysing specimens of pest insects infested inside of pear-shaped fruits of the cultivated water apple, S. samarangense, in Dong Thap Province, South Vietnam, a total of four insect species were recorded as the important pests for fruits of six varieties of the cultivated water apples. The hymenoteran wasp, A. malacia, is recorded for the first time from Vietnam. Further evidence is needed to prove A. malacia being an invasive pest in Vietnam. The associated hymenopteran parasitoid assemblage with the fruit infested insect pests is also provided. 

scholarly journals The Inventory of Scale Insects (Hemiptera, Coccoidea) Associated With Olive Tree in North of Tunisia

2020 ◽  
Author(s):  
Naceur gharbi
Keyword(s):  
Olive Tree ◽  
Scale Insect ◽  
Scale Insects ◽  
Insect Species ◽  
Annotated List ◽  
The Family ◽  
Olive Groves ◽  
First Time

Abstract Background: This study was realized for more than four years (from 2014 to 2018) in olive groves of northern Tunisian governorates. Scale insect samples were collected from leaves, stems and fruits.Results: An annotated list of 22 scale insect species has been recorded. These species divided into 4 families. The family Diaspididae is the most species-rich, with 14 species in 9 genera; Coccidae contains 4 species in 3 genera; Pseudococcidae contains 3 species in 3 genera; and Asterolecaniidae contains 1 species in 1 genus.Conclusions: This paper contains 3 species recorded for the first time in the Tunisian fauna: Saissetia coffeae (Walker), Diaspidiotus ostreaeformis (Curtis) and Lepidosaphes conchiformis (Gmelin).

scholarly journals Hemiptera, Coccoidea: Distribution extension and new records for the states of Espírito Santo, Ceará, and Pernambuco, Brazil

Check List ◽  
2011 ◽  
Vol 7 (4) ◽  
pp. 567 ◽  
Author(s):  
Mark P. Culik ◽  
Vera R. S. Wolff ◽  
Ana Lúcia B. G. Peronti ◽  
Yair Ben-Dov ◽  
José Aires Ventura
Keyword(s):  
Host Plant ◽  
Geographic Distribution ◽  
New Records ◽  
Scale Insect ◽  
Insect Species ◽  
New Host ◽  
Espírito Santo ◽  
Espirito Santo ◽  
First Time

New host plant and geographic distribution records are presented for 22 scale insect species of six families collected in the Brazilian states of Espírito Santo, Ceará, and Pernambuco during 2006 to 2009. Nine species, Aclerda takahashii Kuwana, 1932, Ceroplastes cirripediformis Comstock, 1881, C. acutus Peronti, 2008, C. stellifer (Westwood, 1871), Howardia biclavis (Comstock, 1883), Insignorthezia insignis (Browne, 1887), Dysmicoccus texensis (Tinsley, 1900), Nipaecoccus cf. nipae, and Planococcus halli Ezzat, 1962, are registered for the first time in Espírito Santo, and this is the initial record of Aclerdidae in this state. 

Eco-smart pest management in rice farming: prospects and challenges

2019 ◽  
Vol 56 (Special) ◽  
pp. 143-155
Author(s):  
SD Mohapatra ◽  
R Tripathi ◽  
Anjani Kumar ◽  
Suchismita Kar ◽  
Minati Mohapatra ◽  
...  
Keyword(s):  
Insect Pests ◽  
Mobile Apps ◽  
Insect Species ◽  
Economic Damage ◽  
Pests And Diseases ◽  
Pest Damage ◽  
Disruptive Technologies ◽  
Hyper Spectral ◽  
Rice Pest ◽  
Computer Based

The insect problem is accentuated in intensive rice cropping where the insects occur throughout the year in overlapping generations. Over 800 insect species damaging rice in one way or another, although the majority of them do very little damage. In India, about a dozen of insect species are of major importance but the economic damage caused by these species varies greatly from field to field and from year to year. Insect pests cause about 10-15 per cent yield losses. Farmers lose an estimated average of 37% of their rice crop to insect pests and diseases every year. This review focuses on precision farming tools being used in rice pest and diseases management viz., forecasting model for real-time pest-advisory services, hyper-spectral remote sensing in pest damage assessment, computer-based decision support system, disruptive technologies (mobile apps).

scholarly journals Vibrational communication and mating behavior of the greenhouse whitefly Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Valeria Fattoruso ◽  
Gianfranco Anfora ◽  
Valerio Mazzoni
Keyword(s):  
Mating Behavior ◽  
Insect Pests ◽  
Trialeurodes Vaporariorum ◽  
Vibrational Communication ◽  
Greenhouse Whitefly ◽  
Behavioral Manipulation ◽  
Vibrational Signals ◽  
Intraspecific Communication ◽  
Behavioral Transition ◽  
First Time

AbstractThe greenhouse whitefly (GW), Trialeurodes vaporariorum is considered one of the most harmful insect pests in greenhouses worldwide. The GW mating behavior has been partially investigated and its vibrational communication is only in part known. A deeper knowledge of its intraspecific communication is required to evaluate the applicability of control methods based on techniques of behavioral manipulation. In this study, for the first time, we provided a detailed ethogram of the GW mating behavior and we characterized the vibrational signals emitted during the process of pair formation. We characterized two types of male vibrational emissions (“chirp” and “pulses”), differently arranged according to the behavioral stage to form stage-specific signals, and a previously undescribed Male Rivalry Signal. We recorded and characterized two new female signals: The Female Responding Signal and the Female Rejective Signal. The mating behavior of GW can be divided into six different stages that we named “call”, “alternated duet”, “courtship”, “overlapped duet”, “mating”, “failed mating attempt”. The analysis performed with the Markovian behavioral transition matrix showed that the “courtship” is the key stage in which male exhibits its quality and can lead to the “overlapped duet” stage. The latter is strictly associated to the female acceptance and therefore it plays a crucial role to achieve mating success. Based on our findings, we consider the use of vibrational playbacks interfering with GW mating communication a promising option for pest control in greenhouses. We discuss the possibility to start a research program of behavioral manipulation to control the populations of GW.

scholarly journals Delayed implantation in giant pandas: the first comprehensive empirical evidence

Reproduction ◽  
2009 ◽  
Vol 138 (6) ◽  
pp. 979-986 ◽  
Author(s):  
Hemin Zhang ◽  
Desheng Li ◽  
Chendong Wang ◽  
Vanessa Hull
Keyword(s):  
Reproductive Biology ◽  
Giant Panda ◽  
Reproductive Development ◽  
Mammary Glands ◽  
Strongly Correlated ◽  
Physiological Changes ◽  
Giant Pandas ◽  
Delayed Implantation ◽  
Infant Birth ◽  
First Time

Successful conservation of an endangered species relies on a good understanding of its reproductive biology, but there are large knowledge gaps. For example, many questions remain unanswered with regard to gestation and fetal development in the giant panda. We take advantage of a sample size that is unprecedented for this species (n=13) to explore patterns in reproductive development across individuals at the China Conservation and Research Center for the Giant Panda. We use ultrasound techniques on multiple giant pandas for the first time to empirically confirm what has long been suspected that pandas exhibit delayed implantation of the embryo. We also show that the duration of postfetal detection period is remarkably similar across individuals (16.85±1.34 days). Detection of fetus by ultrasound was strongly correlated to the peak in urinary progesterone (r=0.96, t=8.48, d.f.=8, P=0.0001) and swelling in the mammary glands (r=0.79, t=3.61, d.f.=8, P=0.007) and vulva (r=0.91, t=6.40, d.f.=8, P=0.0002) of adult females. When controlling for both the duration of the total gestation period and the postfetal detection period, infant birth weight was only significantly predicted by the latter (β=11.25, s.e.m.=4.98, t=2.26, P=0.05), suggesting that delayed implantation increases flexibility in the timing of birth but is not important in dictating infant growth. This study informs reproductive biology by exploring the little-studied phenomenon of delayed implantation in relationship to physiological changes in pregnant giant panda females.

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