scholarly journals Chloris distichophylla Lag. (Poaceae) as stink bug (Pentatomidae) shelter in soybean and corn off-season in southern Brazil

2019 ◽  
Author(s):  
Eduardo Engel ◽  
Mauricio P. B. Pasini ◽  
Daniele C. Hörz ◽  
Rafael P. Bortolotto
Keyword(s):  
Data Analysis ◽  
Population Density ◽  
Stink Bug ◽  
Stink Bugs ◽  
Southern Brazil ◽  
Euschistus Heros ◽  
Composition Structure

AbstractThe objective of this study was to evaluate the composition and abundance of dormant bedbugs in Chloris distichophylla Lag (Poales: Poaceae) over the soybean and corn off-season. The work was carried out in the municipality of Cruz Alta, over the soybean and corn off-season between 2014 and 2018. Plants of C. distichophylla with different clump diameter were sampled, and the bugs contained in them were counted and submitted to data analysis for the evaluation of the composition, structure, and diversity of occurring species. At the end of the experiment, 3543 hibernating adults were counted and divided into six species: Euschistus heros (F.), Dichelops furcatus (F.), Dichelops melacanthus Dallas, Edessa meditabunda (F.), Edessa ruformaginata (De Geer) (Hemiptera: Pentatomidae). The species E. heros was the most abundant, followed by D. furcatus. The diameter of the clumps directly affects the population density of the stink bugs. Finally, C. distichophylla is shown as a hibernate favorable to the maintenance of the stink bug populations over the soybean and corn off-season.

scholarly journals Saccharum angustifolium (Nees) Trin. (Poales: Poaceae) as hibernacle for stink bugs during the soybean and corn off-season in Southern Brazil

2019 ◽  
Vol 86 ◽  
Author(s):  
Eduardo Engel ◽  
Mauricio Paulo Batistella Pasini ◽  
José Luiz Tragnago ◽  
Daniele Caroline Hörz ◽  
Nadiel Augusto Kist ◽  
...  
Keyword(s):  
Population Density ◽  
Direct Effect ◽  
Host Plants ◽  
Economic Importance ◽  
Stink Bugs ◽  
Southern Brazil ◽  
Key Factors ◽  
True Bugs ◽  
Euschistus Heros

ABSTRACT Host plants are key factors in the survival of true bugs during unfavorable periods. The objective of this study was to evaluate the composition, diversity and abundance of pentatomid bugs in Saccharum angustifolium (Nees) Trin. (Poales: Poaceae). Plants were evaluated during the soybean and corn off--season for five years. A total of 250 plants were sampled, the true bug population was counted and used for statistical and faunistic analysis. We observed the occurrence of the species: Euschistus heros (F.), Dichelops furcatus (F.), Dichelops melacanthus (Dallas), Edessa meditabunda (F.), and Edessa ruformaginata (De Geer). Among the species, the highest population density was verified for E. meditabunda, E. heros, and D. furcatus. We also observed a direct effect of the clump diameter on the population density of E. heros, D. furcatus, and E. meditabunda. Finally, we conclude that S. angustifolium plants serve as adequate hibernacles for the survival of true bugs of economic importance during the soybean and corn off-season.

scholarly journals Diversity of stink bugs (Pentatomidae) in Chloris distichophylla Lag. (Poaceae) overwintering

2019 ◽  
Vol 1 ◽  
pp. ec01007
Author(s):  
Eduardo Engel ◽  
Mauricio P. B. Pasini
Keyword(s):  
Population Density ◽  
Rio Grande ◽  
Stink Bug ◽  
Stink Bugs ◽  
Rio Grande Do Sul ◽  
Euschistus Heros ◽  
Piezodorus Guildinii

The objective of this study was to evaluate the diversity and abundance of stink bugs in Chloris distichophylla Lag (Poales: Poaceae) during the soybean and corn off-season. The work was carried out in the municipality of Cruz Alta, Rio Grande do Sul state, over the soybean and corn off-season between 2014 and 2018. 3543 adults were identified into six species: Euschistus heros (Fabricius, 1798), Dichelops furcatus (Fabricius, 1775), Dichelops melacanthus (Dallas, 1851), Edessa meditabunda (Fabricus, 1794), Edessa ruformaginata (De Geer, 1773) and Piezodorus guildinii (Westwood, 1837) (Hemiptera: Pentatomidae). E. heros was the most abundant, followed by D. furcatus. The diameter of the clumps directly affects the population density of the stink bugs. Finally, C. distichophylla is shown as favorable to the maintenance of the stink bug populations over the soybean and corn off-season.

scholarly journals Andropogon bicornis L. (Poales: Poaceae): a stink bug shelter in the soybean and corn off-season in southern Brazil

2019 ◽  
Author(s):  
Eduardo Engel ◽  
Mauricio Paulo Batistella Pasini ◽  
João Fernando Zamberlan ◽  
Rafael Pivotto Bortolotto ◽  
Roberta Cattaneo Horn ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Population Density ◽  
Host Plants ◽  
Pearson Correlation ◽  
Stink Bug ◽  
Southern Brazil ◽  
Abundance Distribution ◽  
Pest Insects ◽  
Euschistus Heros ◽  
Area Data

AbstractAssociated host plants promote the survival of various species of pest insects during unfavorable periods. The objective of this study was to evaluate the diversity, abundance and structure of the pentatomid bugs community during the soybean and corn off-season in Andropogon bicornis L. (Poales, Poaceae) plants. The experiment was carried out in the municipality of Cruz Alta, RS, Brazil. During the soybean and corn off-season from 2014 to 2018, clumps of 10 to 50 centimeters in diameter were observed around the growing area. Data on the number of species and abundance of individuals were used for statistical analysis (ANOVA, linear regression and Pearson correlation) and faunistic (diversity and abundance distribution). At the end of the experiment 4050 adults belonging to the species Euschistus heros (F.), Dichelops furcatus (F.), Dichelops melacanthus (Dallas), Edessa meditabunda (F.), Edessa ruformaginata (De Geer) and Piezodorus guildini. Among the species, we found greater abundance for E. meditabunda, E. heros and D. furcatus (96.07%) of the individuals sampled. Higher interspecific correlation was observed between the same species, we also observed a direct effect of the clump diameter on the population density. Among the six species observed, at least five are economically important for soybean and corn crops, so further studies are needed in order to verify the effects of this hibernation site on the population present in the crop and its damages.

scholarly journals Pentatomids associated with blackberry

2014 ◽  
Vol 38 (3) ◽  
pp. 256-261
Author(s):  
Mauricio Paulo Batistella Pasini ◽  
Alessandro Dal'Col Lúcio
Keyword(s):  
Rio Grande ◽  
Nezara Viridula ◽  
Brown Spot ◽  
Stink Bug ◽  
Stink Bugs ◽  
Rio Grande Do Sul ◽  
Dark Brown Spot ◽  
Euschistus Heros ◽  
Santa Maria ◽  
Piezodorus Guildinii

Information concerning the presence of stink bugs in blackberry (Rubus spp.) in Brazil is sparse. This study aimed to identify the stink bug species associated with blackberry, to establish the daily dynamics and evaluate the fruits damage. The experiment was conducted in Santa Maria, Rio Grande do Sul State, Brazil, in blackberry orchard. Presence and evaluations of stink bugs were done weekly through visual and sweeping samplings at different day times. Five species of pentatomids were identified: Piezodorus guildinii, Nezara viridula, Euschistus heros, Dichelops furcatus and Edessa meditabunda. The bugs attack the drupelets producing a dark brown spot and wrinkled berries.

scholarly journals Characterization and Comparison of Intestinal Bacterial Microbiomes of Euschistus heros and Piezodorus guildinii Collected in Brazil and the United States

2021 ◽  
Vol 12 ◽  
Author(s):  
Matheus Sartori Moro ◽  
Xing Wu ◽  
Wei Wei ◽  
Lucas William Mendes ◽  
Kerry Clint Allen ◽  
...  
Keyword(s):  
United States ◽  
The United States ◽  
Microbial Pathogens ◽  
Intestinal Microbiome ◽  
Rrna Gene ◽  
Stink Bug ◽  
Stink Bugs ◽  
Physical Damage ◽  
Euschistus Heros ◽  
Piezodorus Guildinii

Background: Herbivorous insects are one of the main biological threats to crops. One such group of insects, stink bugs, do not eat large amounts of tissue when feeding on soybean, but are damaging to the quality of the seed yield as they feed on green developing seeds leading to poorly marketable harvests. In addition to causing physical damage during sucking-feeding activities, the insects can also transmit microbial pathogens, leading to even greater yield loss. Conducting surveys of the insect intestinal microbiome can help identify possible pathogens, as well as detail what healthy stink bug digestive systems have in common.Methods: We used the conserved V4 region of the 16S rRNA gene to characterize the bacterial microbiome of the red-banded stink bug Piezodorus guildinii collected in Brazil and the United States, as well as the neotropical brown stink bug Euschistus heros collected in Brazil.Results: After quality filtering of the data, 192 samples were kept for analyses: 117 samples from P. guildinii covering three sites in Brazil and four sites in the United States, and 75 samples for E. heros covering 10 sites in Brazil. The most interesting observations were that the diversity and abundance of some bacterial families were different in the different ecoregions of Brazil and the United States.Conclusion: Some families, such as Acetobacteraceae, Bacillaceae, Moraxellaceae, Enterobacteriaceae, and Rhodocyclaceae, may be related to the better adaptation in some localities in providing nutrients, break down cellulose, detoxify phytochemicals, and degrade organic compounds, which makes it difficult to control these species.

scholarly journals Stink Bug Population in Cotton Plantations with Different Plant Spacings

2020 ◽  
Vol 11 (4) ◽  
Author(s):  
Izidro Dos Santos de Lima Júnior ◽  
Paulo Eduardo Degrande ◽  
Elmo Pontes de Melo ◽  
Lígia Maria Maraschi da Silva Piletti ◽  
Antonio Luiz Viegas Neto
Keyword(s):  
Cotton Plant ◽  
Plant Density ◽  
Stink Bug ◽  
Plant Spacing ◽  
Stink Bugs ◽  
Two Samples ◽  
Euschistus Heros ◽  
Number Of Leaves ◽  
Narrow Row ◽  
Cotton Plantations

The increase in cotton plant population by decreasing the spacing between rows cause some changes in phenotypical characteristics of cotton plants, such as decrease in number of leaves per plant, low-development leaves, and great soil shading. Stink bugs of the Pentatomidae family that migrate from soybean crops seem to benefit from the cotton narrow-row planting system. The objective of the present work was to evaluate adult and nymph stink bug populations in cotton plantations under three plant spacing. The experiment was conducted in the 2010/2011 cotton season at the Experimental Farm of the Federal University of Grande Dourados, in Dourados, MS, Brazil. A randomized block experimental design was used, with three cotton growing systems and eight replications, totaling 24 plots. The cotton growing systems were selected based on spacing between planting rows (0.22, 0.45, and 0.90 m). Five evaluations were conducted to survey the stink bug populations, with two samples per plot. The number of nymphs and adults of Euschistus heros and Edessa meditabunda was counted. The spacing between cotton planting rows affects stink bug populations of the species Euschistus heros and Edessa meditabunda. Increases in cotton plant density decrease the occurrence of stink bug in the plantation. The stink bug population is greater in cotton plantations with spacing of 0.90 m between planting rows.

scholarly journals Oviposition preference of the neotropical brown stink bug Euschistus heros on artificial substrates of different colors

2013 ◽  
Vol 43 (12) ◽  
pp. 2185-2190
Author(s):  
Diones Krinski ◽  
Bruna Magda Favetti ◽  
Adielson Gonçalves de Lima ◽  
Tatiane Regina Brum
Keyword(s):  
Analysis Of Variance ◽  
Oviposition Preference ◽  
Artificial Substrates ◽  
Choice Test ◽  
Stink Bug ◽  
Stink Bugs ◽  
Design Data ◽  
Randomized Design ◽  
Euschistus Heros ◽  
Completely Randomized Design

This study aimed to evaluate the oviposition preference of the Neotropical brown stink bug, Euschistus heros (F.) on artificial substrates of different colors (felt woven). For this, ten pairs of stink bugs were transferred into plastic pots. Each pot contained seven felts of 6x20 cm (100% polyester-atoxic) of different colors (white, black, blue, green, red, yellow and brown). The pots were evaluated daily for three weeks (21 days) being counted the number of eggs, clutches and eggs per clutch for each color of felt. The choice test was set in a completely randomized design. Data obtained was submitted to the analysis of variance and means were compared by Scott-Knott test at 5% probability. During the evaluation were produced 7074 eggs distributed in 977 clutches, accounting a mean of 7.06±0.67 eggs per clutch. Results indicated that females laid a significantly greater number of eggs (2380 and 1686) and a greater number of clutches (319 and 233) on the yellow and white felts, respectively, than on the remaining substrates. The substrates in color red, black and brown were the least preferred, and the colors blue and green were intermediate when compared with others. Therefore, the substrates colored yellow and white are suggested to be used in rearing E. heros in the laboratory.

scholarly journals STINK BUG POPULATION FLUCTUATION AND CONTROL IN SOUR PASSION FRUIT ORCHARDS IN SOUTHERN BRAZIL

2019 ◽  
Vol 32 (4) ◽  
pp. 1111-1116
Author(s):  
NOEL ALVES RIBEIRO ◽  
JOATAN MACHADO DA ROSA ◽  
CLÁUDIO ROBERTO FRANCO ◽  
MARI INÊS CARISSIMI BOFF
Keyword(s):  
Passion Fruit ◽  
Population Fluctuation ◽  
Stink Bug ◽  
Stink Bugs ◽  
Southern Brazil ◽  
National Production ◽  
Processed Products ◽  
Fruit Orchards ◽  
And Control ◽  
Sour Passion Fruit

ABSTRACT Sour passion fruit (Passiflora edulis Sims, 1818) crops in Brazil are drawing attention due to the national production, and the increasing consumption of this fruit as fresh and processed products. However, fruit losses due to damages caused by stink bugs (Hemiptera: Coreidae) are concerning to fruit growers in southern Brazil. The objective of this study was to evaluate the population fluctuation and control of stink bugs in P. edulis crops grown in the 2013-2014 and 2014-2015 crop seasons in Araquari, SC, Brazil, using natural and synthetic insecticides. The stink bug population was evaluated using the 0.25 m2 frame technique. The evaluations were carried out weekly during the two crop seasons. The species and distribution of stink bugs in the different parts of the plant were evaluated. The insecticides and rates used were: Neenmax (azadirachtin 1.0%) at 10 mL L-1; Orobor N1 (N-citric acid 1.0% + 0.20% B) at 2 mL L-1; and Decis 25 EC (deltamethrin 2.5%) at 1 mL L-1, diluted in aqueous solution. Specimens of three stink bug species where found: 86% Diactor bilineatus (Hemiptera: Coreidae); 13.5% Holhymenia histrio (Hemiptera: Coreidae), and 0.5% Nezara viridula (Hemiptera: Pentatomidae). The D. bilineatus species presented higher frequency, constancy, and dominance during the evaluated crop seasons; 64% of the stink bugs were found on fruits, 18.5% on leaves, 7.3% on floral buds, 5.8% on flowers, and 4.4% on branches. The use of azadirachtin or deltamethrin was efficient to reduce the stink bug infestation and the number of P. edulis withered fruits.

scholarly journals Characterization and Comparison of Intestinal Bacterial Microbiomes of Euschistus Heros and Piezodorus Guildinii Collected in Brazil and the United States

2021 ◽  
Author(s):  
Matheus Sartori Moro ◽  
Xing Wu ◽  
Wei Wei ◽  
Lucas William Mendes ◽  
Clint Allen ◽  
...  
Keyword(s):  
United States ◽  
The United States ◽  
Microbial Pathogens ◽  
Intestinal Microbiome ◽  
Rrna Gene ◽  
Stink Bug ◽  
Stink Bugs ◽  
Physical Damage ◽  
Euschistus Heros ◽  
Piezodorus Guildinii

Abstract Background: Herbaceous insects are one of the main biological threats to crops. One such group of insects, stink bugs, do not eat large amounts of tissue when feeding on soybean, but are extremely damaging to the quality of the seed yield as they feed directly on green developing seeds leading to poorly marketable harvests. In addition to causing physical damage to the seed during feeding, the insects can also transmit microbial pathogens, leading to even greater yield loss. Conducting surveys of the insect intestinal microbiome can help identify possible pathogens, as well as detail what healthy stink bug digestive systems have in common.Methods: We used the conserved V4 515-806 region of the 16S rRNA gene to characterize the bacterial microbiome of the red-banded stink bug Piezodorus guildinii collected in Brazil and the United States, as well as the neotropical brown stink bug Euschistus heros collected in Brazil.Results: After quality filtering of the data, 192 samples were kept for analyses: 117 samples from P. guildinii covering three sites in Brazil and four sites in the US, and 75 samples for E. heros covering 10 sites in Brazil. The most interesting observations were that the diversity and abundance of some bacterial families were different in the different ecoregions of Brazil and the United States.Conclusions: Some families may be related to the better adaptation in some localities in provide nutrients, break down cellulose, detoxify phytochemicals, and degrade organic compounds, which makes it difficult to control these species.

scholarly journals Characterization and Comparison of Intestinal Bacterial Microbiomes of Euschistus Heros and Piezodorus Guildinii Collected in Brazil and the United States

2021 ◽  
Author(s):  
Matheus Sartori Moro ◽  
Xing Wu ◽  
Wei Wei ◽  
Lucas William Mendes ◽  
Clint Allen ◽  
...  
Keyword(s):  
United States ◽  
The United States ◽  
Microbial Pathogens ◽  
Intestinal Microbiome ◽  
Rrna Gene ◽  
Stink Bug ◽  
Stink Bugs ◽  
Physical Damage ◽  
Euschistus Heros ◽  
Piezodorus Guildinii

Abstract Background: Herbaceous insects are one of the main biological threats to crops. One such group of insects, stink bugs, do not eat large amounts of tissue when feeding on soybean, but are extremely damaging to the quality of the seed yield as they feed directly on green developing seeds leading to poorly marketable harvests. In addition to causing physical damage to the seed during feeding, the insects can also transmit microbial pathogens, leading to even greater yield loss. Conducting surveys of the insect intestinal microbiome can help identify possible pathogens, as well as detail what healthy stink bug digestive systems have in common. Methods: We used the conserved V4 515-806 region of the 16S rRNA gene to characterize the bacterial microbiome of the red-banded stink bug Piezodorus guildinii collected in Brazil and the United States, as well as the neotropical brown stink bug Euschistus heros collected in Brazil. Results: After quality filtering of the data, 192 samples were kept for analyses: 117 samples from P. guildinii covering three sites in Brazil and four sites in the US, and 75 samples for E. heros covering 10 sites in Brazil. The most interesting observations were that the diversity and abundance of some bacterial families were different in the different ecoregions of Brazil and the United States. Conclusions: Some families may be related to the better adaptation in some localities in provide nutrients, break down cellulose, detoxify phytochemicals, and degrade organic compounds, which makes it difficult to control these species.

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