scholarly journals The Oak Lace Bug: Appearance and Distribution in Russia

2021 ◽  
Author(s):  
Yuri Gninenko ◽  
Uliana Chernova ◽  
Vladimir Nalepin
Keyword(s):  
Lace Bug

Evaluation of Selected Cotoneaster spp. for Resistance to Hawthorn Lace Bug

1985 ◽  
Vol 3 (4) ◽  
pp. 156-157
Author(s):  
Peter B. Schultz
Keyword(s):  
The Other ◽  
Lace Bug ◽  
Lace Bugs ◽  
Preference Study ◽  
Dense Pubescence

Four Cotoneaster species were evaluated for resistance to hawthorn lace bug. In a preference study using adults, the lace bugs preferred C. x watereri Exell. ‘Brandekeir’ when compared to the other 3 species, C. lacteus W.W.Sm., C. nitens Rehd. & E.H. Wils. and C. acutifolius Turcz. Significantly fewer nymphs completed development on foliage of C. lacteus than on C. x watereri ‘Brandekeir,’ C. nitens and C. acutifolius. The presence of dense pubescence is suggested as a factor in this reduced development.

In Vitro Screening of Azalea for Resistance to Azalea Lace Bug

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 506b-506
Author(s):  
Carol D. Robacker ◽  
S.K. Braman
Keyword(s):  
Leaf Damage ◽  
In Vitro Screening ◽  
Screening Assay ◽  
Delaware Valley ◽  
In Vitro Techniques ◽  
Culture Tube ◽  
Lace Bug ◽  
Lace Bugs ◽  
Laboratory Bioassays

Azalea lace bug (Stephanitis pyrioides) is the most serious pest on azalea. Results of laboratory bioassays and field evaluations of 17 deciduous azalea taxa have identified three resistant taxa: R. canescens, R. periclymenoides, and R. prunifolium. Highly susceptible taxa are `Buttercup', `My Mary', R. oblongifolium, and the evergreen cultivar `Delaware Valley White'. To determine whether in vitro techniques would have potential value in screening or selecting for resistance, or for the identification of morphological or chemical factors related to resistance, an in-vitro screening assay was developed. In-vitro shoot proliferation was obtained using the medium and procedures of Economou and Read (1984). Shoots used in the bioassays were grown in culture tubes. Two assays were developed: one for nymphs and one for adult lace bugs. To assay for resistance to nymphs, `Delaware Valley White' leaves containing lace bug eggs were disinfested with 70% alcohol and 20% commercial bleach, and incubated in sterile petri plates with moistened filter paper until the nymphs hatched. Five nymphs were placed in each culture tube, and cultures were incubated for about 2 weeks, or until adults were observed. To assay for resistance to adults, five female lace bugs were placed in each culture tube and allowed to feed for 5 days. Data collected on survival and leaf damage was generally supportive of laboratory bioassays and field results. Adult lace bugs had a low rate of survival on resistant taxa. Survival of nymphs was somewhat reduced on resistant taxa.

scholarly journals Discovery of the Smallest Lace Bug from Mid-Cretaceous of Northern Myanmar Supports the Hypothesis of a Miniaturization Phenomenon of Insects in Kachin Amber (Hemiptera: Heteroptera: Tingidae)

Taxonomy ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 60-68
Author(s):  
Jun Souma ◽  
Shûhei Yamamoto ◽  
Yui Takahashi
Keyword(s):  
New Species ◽  
New Genus ◽  
The Other ◽  
Diagnostic Characters ◽  
Lace Bug ◽  
New Finding ◽  
A New Species

A total of 14 species in seven tingid genera have been described from the mid-Cretaceous Burmese (Kachin) amber from northern Myanmar, with very distinct paleofauna. Here, a new species of a new genus, Burmavianaida anomalocapitata gen. et sp. nov., is described from Kachin amber. This new species can be readily distinguished from the other described tingid taxa by the apparently smaller body and the structures of the pronotum and hemelytron. Burmavianaida gen. nov. shares the diagnostic characters with two clades composed of three extant subfamilies (Cantacaderinae + Tinginae) and Vianaidinae and may represent an extinct clade distinct from them. To the best of our knowledge, B. anomalocapitata sp. nov. is the smallest species of Tingidae among over 2600 described species. Our new finding supports the hypothesis of the miniaturization phenomenon of insects in Kachin amber, as suggested by previous studies.

scholarly journals Efecto de Corythucha gossypii sobre las hojas de higuerilla: criterios para su muestreo y control con insecticidas

2010 ◽  
Vol 11 (1) ◽  
pp. 41 ◽  
Author(s):  
Edgar Herney Varón ◽  
Márcio Dionizio Moreira ◽  
Jenny Paola Corredor
Keyword(s):  
Castor Bean ◽  
Ricinus Communis ◽  
Insect Pest ◽  
Lower Surface ◽  
Insecticide Application ◽  
Lace Bug ◽  
Life Period ◽  
Ricinus Communis L ◽  
Oil Plant ◽  
And Control

<p>El chinche de encaje, Corythucha gossypii (Fabricius) (Hemiptera: Tingidae), es un insecto plaga del algodón, pero ha sido reportado en más de veinticuatro hospederos, incluyendo higuerilla (Ricinus communis L). El objetivo de este trabajo fue evaluar si esta plaga disminuye el periodo de vida útil de las hojas, establecer la superficie de muestreo de la hoja que mejor representa las poblaciones de esta plaga y la eficacia de seis insecticidas para su control en higuerilla. La vida útil de las hojas fue negativamente influenciada por la presencia del insecto plaga; a mayor número inicial de insectos, menor fue el tiempo para la pérdida de hojas. La superficie del envés fue la que mejor representó la población de C. gossypii con un promedio ± Error Standard (ES) de 55,10 ± 4,76 de individuos y una correlación con la población total de 99,60%, R2 =0,99 y p &lt; 0,0001; comparado con 3,44 ± 0,57 individuos y una correlación de 66,32%; R2=0,44 y p &lt; 0,0001 para la superficie del haz. El orden de eficacia de control para 3 días después de la aplicación de los tratamientos fue tiametoxam + lambdacihalotrina (0,00%), spinetoram, (0,00%), malation (20,35%), tiametoxam (38,62%), dimetoato (86,94%) e imidacloprid (87,33%); para 7 días fue tiametoxam + lambdacihalotrina (0,00%), spinetoram (21,46%), malation (38,77), tiametoxam (50,84%), dimetoato (86,14%) e imidacloprid (90,37%). Los datos de muestreo, a partir de 16 días, presentaron una gran pérdida de unidades experimentales, lo que imposibilitó el análisis de los resultados, después de ese tiempo.</p><p> </p><p><strong>Effect of Corythucha gossypii on Castor Oil Plant Leaves: Sampling Criteria and Control by Insecticides</strong></p><p>The lace bug, also called the “cotton or bean lace bug”, Corythucha gossypii (Fabricius) (Hemiptera: Tingidae) is a common pest from cotton. However it has been reported in another twenty four plant hosts including castor bean (Ricinus communis L.). This work aimed to establish if this insect pest can reduce the life-period of leaves, to assess which is the leaf surface that best represents the total pest population for sampling and to test the efficacy of six insecticides for C. gossypii control in a castor bean crop. The life-period of leaves was negatively affected by the presence of the insect, the larger the number of C. gossypii, the shorter their leaf life. The lower surface best represented the entire population of lace bug with a mean ± standard error of 55.10 ± 4.76, with a 99.60% of correlation, a R2=0.99 and a p &lt; 0.0001; compared to 3.44 ± 0.57, with a 66.32% of correlation, a R2=0.44 and a p &lt; 0.0001 for the upper surface. Efficacy of control after three days of insecticide application was: thiamethoxam + lambdacyhalothrin (0.00%), spinetoram, (0.00%), malathion (20.35%), thiamethoxam (38.62%), dimethoate (86.94%) and imidacloprid (87.33%). After seven days of insecticide application the efficacy was thiamethoxam + lambdacyhalothrin (0.00%), spinetoram (21.46%), malathion (38.77), thiamethoxam (50.84%), dimethoate (86.14%) and imidacloprid (90.37%). Results obtained after 16 days lacked many sampling unit leaves, which made their analysis meaningless, after that period of time. </p>

scholarly journals Sycamore Lace Bug, Corythucha ciliata (Say) (Insecta: Hemiptera: Tingidae)

EDIS ◽  
1969 ◽  
Vol 2004 (4) ◽  
Author(s):  
Susan E. Halbert ◽  
James R. Meeker
Keyword(s):  
Late Summer ◽  
Cooperative Extension Service ◽  
Stress Factors ◽  
Extension Service ◽  
Premature Senescence ◽  
University Of Florida ◽  
Platanus Occidentalis ◽  
Lace Bug ◽  
Native North American ◽  
Sycamore Lace Bug

The sycamore lace bug, Corythucha ciliata (Say) is a native North American insect that feeds on sycamore trees (Platanus spp., especially Platanus occidentalis L.). The bugs feed on the undersides of the leaves, initially causing a white stippling that can eventually progress into chlorotic or bronzed foliage and premature senescence of leaves. In cases of severe infestations, trees may be defoliated in late summer. Several consecutive years of severe lace bug damage, combined with other stress factors, may kill the trees (Barnard and Dixon 1983). This document is EENY-190 (originally published as DPI Entomology Circular 387), one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: February 2001. EENY190/IN347: Sycamore Lace Bug, Corythucha ciliata (Say) (Insecta: Hemiptera: Tingidae) (ufl.edu)

scholarly journals Green Lacewings and Water Sprays for Azalea Lace Bug Control1

2018 ◽  
Vol 36 (4) ◽  
pp. 119-125
Author(s):  
Jana C. Lee ◽  
Barry Finley ◽  
S. Michael Flores ◽  
Katerina Velasco Graham ◽  
J. Megan Woltz ◽  
...  
Keyword(s):  
Biological Control ◽  
Field Trials ◽  
Green Lacewing ◽  
Chrysoperla Rufilabris ◽  
Lace Bug ◽  
Landscape Plants ◽  
Water Sprays ◽  
Lace Bugs ◽  
Sequential Combination ◽  
Application Methods

Abstract The azalea lace bug, Stephanitis pyrioides, is a serious pest of azaleas and rhododendrons which is often controlled by systemic insecticides. However, the efficacy of softer approaches such as biological control and water sprays against this pest on rhododendrons is unknown. Therefore, we tested the commercially available green lacewing predator, Chrysoperla rufilabris, and water sprays on lace bug infestation in one laboratory and four field trials. First, 2nd instar predator larvae were confirmed to consume lace bug nymphs and sometimes adults. Second, tapping predator larvae from hexcel units over dry leaves of potted rhododendrons and shaking loose eggs over wet leaves were reliable application methods. Third, predator larvae released onto potted rhododendrons lowered lace bug counts for two weeks. Fourth, after four bi-weekly applications, plants receiving egg cards or water-sprays had reduced lace bug counts and fewer damaged leaves than control plants. Fifth, landscape plants receiving the sequential combination of water spray followed by predator egg releases had 44 to 90% lower lace bug abundance and fewer damaged leaves than the control. After lace bugs were initially dislodged, hatching predators might have consumed hatching lace bugs. Index words: biological control, Chrysoperla rufilabris (Burmeister), mechanical control, rhododendron, Stephanitis pyrioides (Scott) Species used in this study: Azalea lace bug (Stephanitis pyrioides Scott), green lacewing (Chrysoperla rufilabris Burmeister), Rhododendron (Rhododendron spp.)

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