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Alarm pheromone system of stink bug Piezodorus guildinii (Heteroptera: Pentatomidae)
Zarbin, Paulo H. G.;Borges, Miguel;Santos, Alcindo A. dos;Oliveira, Alfredo R. M. de;Simonelli, Fábio;Marques, Francisco de A.;
Journal of the Brazilian Chemical Society , 2000, DOI: 10.1590/S0103-50532000000400017
Abstract: the compounds utilized by the soybean stink bug piezodorus guildinii as alarm pheromone were characterized by analysis of the chemical composition of the metathoracic scent gland secretions from adult bugs. in addition to characteristic hydrocarbons, (e)-2-hexenal and (e)-4-oxo-2-hexenal were detected as major constituents. these compounds were previously described as alarm pheromone in several other pentatomid species.
Alarm pheromone system of stink bug Piezodorus guildinii (Heteroptera: Pentatomidae)  [cached]
Zarbin Paulo H. G.,Borges Miguel,Santos Alcindo A. dos,Oliveira Alfredo R. M. de
Journal of the Brazilian Chemical Society , 2000,
Abstract: The compounds utilized by the soybean stink bug Piezodorus guildinii as alarm pheromone were characterized by analysis of the chemical composition of the metathoracic scent gland secretions from adult bugs. In addition to characteristic hydrocarbons, (E)-2-hexenal and (E)-4-oxo-2-hexenal were detected as major constituents. These compounds were previously described as alarm pheromone in several other pentatomid species.
Performance of nymphs and adults of Piezodorus guildinii (Westwood) (Hemiptera: Pentatomidae) on soybean pods at different developmental stages
Oliveira, émerson D. M.;Panizzi, Ant?nio R.;
Brazilian Archives of Biology and Technology , 2003, DOI: 10.1590/S1516-89132003000200008
Abstract: a study was conducted in the laboratory to test the suitability of soybean [glycine max (l.) merrill] pods at different phenological stages of development (r3-r8) on the performance of nymphs and adults of the small green stink bug piezodorus guildinii (westwood) (hemiptera: pentatomidae). nymphs and adults showed better performance when fed on soybean pods during the pod-filling stage (r5-r6), compared to those fed on soybean pods at the remaining stages of development. when fed on soybean pods without seeds (r3-r4) no nymphs survived and no adults reproduced.
Performance of nymphs and adults of Piezodorus guildinii (Westwood) (Hemiptera: Pentatomidae) on soybean pods at different developmental stages  [cached]
Oliveira émerson D. M.,Panizzi Ant?nio R.
Brazilian Archives of Biology and Technology , 2003,
Abstract: A study was conducted in the laboratory to test the suitability of soybean [Glycine max (L.) Merrill] pods at different phenological stages of development (R3-R8) on the performance of nymphs and adults of the small green stink bug Piezodorus guildinii (Westwood) (Hemiptera: Pentatomidae). Nymphs and adults showed better performance when fed on soybean pods during the pod-filling stage (R5-R6), compared to those fed on soybean pods at the remaining stages of development. When fed on soybean pods without seeds (R3-R4) no nymphs survived and no adults reproduced.
The adequacy of artificial oviposition substrates for laboratory rearing of Piezodorus guildinii (Westwood) (Heteroptera, Pentatomidae)
Silva, Flávia A.C.;Panizzi, Ant?nio R.;
Revista Brasileira de Entomologia , 2008, DOI: 10.1590/S0085-56262008000100022
Abstract: studies in the laboratory tested the suitability of synthetic wool string, cotton string, cheesecloth, and commercial cotton ball as artificial oviposition substrates for the small green stink bug, piezodorus guildinii (westwood) (heteroptera, pentatomidae). in confined cages, 54% of total egg masses was laid on synthetic wool string, 31% on cotton string, and only 15% on cheesecloth. in an additional test, the best substrate selected, synthetic wool string, received 92% of egg masses compared to 8% on the commonly used substrate, cotton ball. synthetic wool string received the most egg masses of any size, in particular those in the range 11-20 eggs/mass. because the eggs of p. guildinii are laid in two parallel double rows, the egg masses fit the wool string perfectly.
Duration of feeding and superficial and in-depth damage to soybean seed by selected species of stink bugs (Heteroptera: Pentatomidae)
Depieri, RA;Panizzi, AR;
Neotropical Entomology , 2011, DOI: 10.1590/S1519-566X2011000200007
Abstract: laboratory studies were conducted to compare duration of feeding and superficial and in-depth damage to soybean (glycine max) seeds by the southern green stink bug, nezara viridula (l.), the neotropical brown stink bug, euschistus heros (f.), the red-banded stink bug, piezodorus guildinii (westwood), and the green-belly stink bug, dichelops melacanthus (dallas). results indicated that feeding time was significantly longer for n. viridula (≈ 133 min) compared to e. heros and d. melacanthus (≈ 70 min), but not different from p. guildinii (≈ 103 min). there was a positive correlation between feeding time and the resulting damage for e. heros, n. viridula and p. guildinii (r2 > 0.80, p < 0.0001), but not for d. melacanthus (r2 = 0.1011, p = 0.1493). the deepest seed damage (2.0 mm) was made by p. guildinii and the shallowest (0.5 mm) by d. melacanthus. the depth of the seed damage by e. heros and n. viridula (0.8, 1.2 mm, respectively) was intermediate in comparison to the other species studied. feeding damage to the seed endosperm caused variable cell disruption and protein body dissolution, particularly when p. guildinii fed on seeds, suggesting that the deleterious action of salivary enzymes was greater for this bug compared to the others.
Trypanosomatid prevalence in Nezara viridula (L.), Euschistus heros (Fabricius) and Piezodorus guildinii (Westwood) (Heteroptera: Pentatomidae) populations in Northern Paraná, Brazil
Sosa-Gómez, Daniel R.;Borges, Ednéia;Viera, Ivan H.T.L.;Costa, Fernando;Oliveira, Caroline N.;
Neotropical Entomology , 2005, DOI: 10.1590/S1519-566X2005000200025
Abstract: the stink bug complex in soybeans has a great potential to cause damage, their control has been difficult due to high population densities at the end of the season. studies related to entomopathogenic organisms in stink bugs are interesting for their possibilities to be used as biological control agents and because they could be an etiological agent in mass rearing. we determined the prevalence of trypanosomatids in the most important species of the stink bug complex in soybean, from brazil, nezara viridula (l.), euschistus heros (fabricius) and piezodorus guildinii (westwood). insects were collected in soybean and on alternate hosts during the intercrop season. hemolymph drops from each adult were mounted on slides and observed under microscope; stink bug numbers with and without flagellates were recorded. the flagellates found in p. guildinii or e. heros populations were smaller than that found in n. viridula. the higher prevalence of the trypanosomatids was observed on soybean reaching a peak of 30% of the sampled n. viridula specimens in january, 2001, and 44% prevalence in february, 2003. the maximum prevalences (16%) in p. guildinii were observed in january and february, 2003 and on july 27, 2003 with 20% of the specimens infected. flagellates in the hemolymph of e. heros were less frequent (maximum prevalence of 8.7%), suggesting that this species is less susceptible than n. viridula and p. guildinii. trypanosomatid prevalence was higher than that observed for entomopathogenic fungi, however they seem to be inefficient control agents in short term condition.
The chemical volatiles (Semiochemicals) produced by neotropical stink bugs (Hemiptera: Pentatomidae)
Moraes, Maria C.B.;Pareja, Martín;Laumann, Raúl A.;Borges, Miguel;
Neotropical Entomology , 2008, DOI: 10.1590/S1519-566X2008000500001
Abstract: in recent years the growing concern about environmental changes and how we are using the natural resources have triggered a search for natural products as alternatives to synthetic pesticides. the stink bugs produce a wide variety of chemical compounds (semiochemicals) that show potential to manage these insects. the stink bugs chinavia impicticornis (st?l), c. ubica (rolston), dichelops melacanthus (dallas), euschistus heros (f.), piezodorus guildinii (westwood), thyanta perditor (westwood) and tibraca limbativentris (st?l) had their blends of defensive compounds evaluated both qualitative and quantitatively. the main compounds identified on the glands of brazilian stink bugs are: 2-alkenals, mainly the e isomer; saturated aliphatic hydrocarbons; and 4 oxo-(e)-2-alkenals. the first sex attractant determined from a stink bug was obtained from nezara viridula l., and consists on a mix of two isomers cis - and trans bisabolene-epoxides. later the soybean stink bug e. heros was also studied and its sex attractant was identified as three esters methyl: 2,6,10-trimethyldecanoate, methyl 2,6,10-trimethyldodecanoate, and methyl e2, z4-decadienoate. recently, three new brazilian sting bugs were studied and had their sex attractant elucidated. males of t. perditor produce the ester, methyl 2e,4z,6z-decatrienoate. whereas, the stink bug, p. guildinii has as sexual pheromone, the sesquiterpene β-sesquiphellandrene, and the stink bug t. limbativentris produces as sex attractant the zingiberenol. in this review we discuss the advances obtained on the behaviour and identification of sex and defensive compound of stink bugs from brazilian crops and the application of this knowledge to manage the stink bugs.
Uso de graus-dia para a previs?o de ocorrência de ninfas e adultos de Piezodorus guildinii (West.) (Heteroptera: Pentatomidae) em soja
Cividanes, Francisco J.;Carvalho, Diogo R.;
Anais da Sociedade Entomológica do Brasil , 2000, DOI: 10.1590/S0301-80592000000200008
Abstract: this study was carried out at the universidade estadual paulista, jaboticabal campus, sp, during the 1995/96 and 1996/97 growing seasons, aiming to predict the occurrence of nymphs and adults of piezodorus guildinii (west.), using a degree-day model. the day when egg masses and adults of the stink bug were first observed in soybean plants was used as the biofix point. the prediction of populational peaks of adults of p. guildinii was more accurate than for occurrence of nymphs.
Volume de calda e inseticidas no controle de Piezodorus guildinii (Westwood) na cultura da soja
Maziero, Heleno;Guedes, Jerson Vanderlei Carús;Farias, Juliano Ricardo;Rodrigues, Rodrigo Borkowski;Dalazen, Giliardi;Dal Prá, Elder;
Ciência Rural , 2009, DOI: 10.1590/S0103-84782009000500001
Abstract: the spray volume is one of the most important aspects interfering on the success of pest control. the objective of this study was to evaluate the effects of spray volume on the efficiency of the insecticides in the control of piezodorus guildinii (westwood) in soybean crop. were evaluated the volumes of 50, 100 and 150l ha-1 and the insecticides endosulfan (437.5g a.i. ha-1) and tiametoxan + lambda-cyhalothrin (21.15 + 15.90g a.i. ha-1). tiametoxan + lambda-cyhalothrin had better residual and control of p. guildinii than endosulfan. both insecticides showed the same behavior, increasing p. guildinii control with spray volume increasing.
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