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| Registros recuperados: 31 | |
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| Schaefer,Carl W.; Panizzi,Antônio R.; Coscarón,Maria C.. |
| During March 2000, nymphs and adults of the cyrtocorid bugs Cyrtocoris egeris Packauskas & Schaefer and C. trigonus (Germar) were observed on two different plants at two different localities. In Brazil (Londrina, Paraná State) adult C. trigonus were found feeding on stems of the weed plant arrow leaf sida, Sida rhombifolia L. (Malvaceae). Despite egg deposition in the laboratory, nymphs did not develop on this plant. In Argentina (Reconquista, Santa Fé Province), nymphs and adults of C. egeris were observed feeding on immature soybean [Glycine max (L.) Merrill] pods. Under laboratory conditions, nymphs of neither species could be reared beyond the third instar. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heteroptera; Sida rhombifolia; Glycine max; Soybean; Ecdysis; Geographical distribution. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000100018 |
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| Fortes,Priscila; Magro,Sandra R.; Panizzi,Antônio R.; Parra,José R.P.. |
| Artificial diets prepared with wheat germ, soybean protein, dextrosol, potato starch, sucrose, cellulose, soybean or sunflower oil, and vitamin solution for rearing Nezara viridula (L.) and Euschistus heros (Fabricius) were tested under controlled temperature (25 ± 1°C), RH (60 ± 10%), and photophase (14h). Three diets were tested and compared with the natural diet privet [soybean and peanut seeds and privet Ligustrum lucidum Ait. fruit (Oleaceae)]. All three artificial diets allowed full development. The diet containing sunflower oil was the most suitable for N. viridula while E. heros developed better on a diet composed of soybean oil. Data indicated that the artificial diets were inferior to the natural diet. The artificial diets were more adequate for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biology; Hemiptera; Mass rearing; Stink bug. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000500001 |
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| Chocorosqui,Viviane R.; Panizzi,Antônio R.. |
| Results of field evaluations indicated that the neotropical pentatomid Dichelops melacanthus (Dallas) is associated with wheat, Triticum aestivum L. In the no-tillage cultivation system, adults and nymphs were mostly found on the soil, near the plant stems and underneath crop residues of the preceding summer crop, usually soybean, Glycine max (L.) Merrill, or corn, Zea mays L. Wheat grown under the conventional cultivation system showed minimal bug attack. D. melacanthus caused substantial damage to no-tillage wheat plants, particularly to seedlings. Bug attack reduces the number of seed heads of up to 34%. Seed yield was reduced in 31% due to the bugs' feeding, compared to plants free of damage. All developmental phases of the wheat plant were susceptible... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Insecticide; No-tillage; Seed treatment; Stink bug. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000400014 |
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| Vivan,Lúcia M.; Panizzi,Antônio R.. |
| The southern green stink bug, Nezara viridula (L.), has several genetically determined types, three being the most common in Brazil: G (f. smaragdula - green body), O (f. torquata - green body with lateral and median lobes of the head and anterior margin of the pronotum yellow), and Y (f. aurantiaca - gold or orange body). Nymphal and adult performance of these types was studied at 15ºC/10hL, 22ºC/12hL, and 29ºC/14hL. Mean total nymph mortality in all types at 15ºC/10hL was high (ca. 80%), especially for type G (98%); at 22ºC/12hL, the greatest mortality (55%) occurred in type G, and at 29ºC/14hL in type Y (65%). In general, at combinations of higher temperatures and longer photoperiods, nymphs developed faster. Adult longevity of type G decreased from ca.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biology; Genetical type; Southern green stink bug. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000600006 |
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| Vivan,Lúcia M.; Panizzi,Antônio R.. |
| Nezara viridula (L.) is a cosmopolitan and polymorphic pentatomid. Several genetically determined types have been described due to body color variation in adults. A survey covering 13 Brazilian states was conducted during 2001 and 2002 to determine the geographical distribution of the main types. Type G (smaragdula - body entirely green), the most common, showed a wide distribution, from south to north (latitude 2º 49' N to 31º 46' S), except in the Central-West Region. Type O (torquata body green with lateral and median lobes of the head and anterior margin of the pronotum yellow), less abundant than the former, was more frequent at latitudes > 23º18' S and mean annual temperatures < 20.8ºC (Southern Region). Type Y (aurantiaca - body entirely gold... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Southern green stink bug; Polymorphic type. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000200004 |
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| Hirose,Edson; Panizzi,Antônio R.; Cattelan,Alexandre J.. |
| Laboratory studies with 1st instar of southern green stink bug, Nezara viridula (L.) indicated that relative humidity (RH) greatly affected nymph emergence and survivorship up to the 2nd instar, reaching the maximum value (<FONT FACE=Symbol>»</FONT> 90%) with RH of > 80%. At 60% RH, 60% of the nymphs emerged and survived, while with 0% RH only <FONT FACE=Symbol>»</FONT> 15% of eggs hatched, and most nymphs died. Emerged nymphs from egg masses placed in plastic boxes with a gradient of humidity remained on egg shells for ca. one day. After this period, they dispersed and regrouped on top of shells 6.8 ± 0.67 times, until they abandoned the shells toward the source of humidity, avoiding the water-saturated areas. Duration taken for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heteroptera; Stink bug; Behavior; Aggregation; Microclimate. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000600006 |
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| Chocorosqui,Viviane R.; Panizzi,Antônio R.. |
| The biology of the pentatomid Dichelops melacanthus (Dallas) feeding on cultivated and non-cultivated plants was studied in the laboratory. Nymph mortality varied from ≈ 60 on corn (seed mature) to 77% on wheat (ear immature); no nymphs survived on seedlings of corn or wheat. Nymph developmental time on soybean, corn or wheat (seed, pod or ear) varied from 25.5 to 32.8 days. Body weight at adult emergence was similar and greater on most foods than on wheat ear. Nymphs fed preferentially on soybean (pod immature). On non-cultivated hosts, nymphs showed high mortality (73%) on crotalaria (pod immature); on tropical spiderwort (stem) all nymphs died. Nymphs took longer time to develop on crotalaria and/or on spiderwort than on soybean. Body weight at adult... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Food; Pentatomid. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000400001 |
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| Panizzi,Antônio R.; Duo,Leandro J. S.; Bortolato,Nágila M.; Siqueira,Fábio. |
| The biology of nymphs and adults of the neotropical pentatomid, Dichelops melacanthus (Dallas), feeding on the natural foods, soybean, Glycine max (L.) Merrill immature pods, and corn, Zea mays L. immature seeds, and on an artificial dry diet, was studied in the laboratory. Nymph developmental time was shorter on the natural foods (ca. 21-22 days) than on the artificial diet (28 days), and most nymphs reached adulthood on the food plants (55% on soybean and 73% on corn) than on the artificial diet (40%). Fresh body weight at adult emergence was similar and higher for females raised as nymphs on the natural foods, compared to females from nymphs raised on the artificial diet; for males, weights were similar on all foods. Mean (female and male) survivorship... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biology; Food; Heteroptera; Insecta; Pentatomidae. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262007000400013 |
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| Silva,Flávia A.C.; Panizzi,Antônio R.. |
| 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... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg deposition; Insecta; Insect rearing. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262008000100022 |
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| Depieri,Rogério A.; Panizzi,Antônio R.. |
| Laboratory studies were conducted to compare rostrum length morphology of mandible serration and area of food and salivary canals of Dichelops melacanthus (Dallas) (Dm), Euschistus heros (F.) (Eh), Nezara viridula (L.) (Nv), and Piezodorus guildinii (Westwood) (Pg) (Heteroptera: Pentatomidae). Nv showed the longest (5.9 mm) and Pg the shortest (3.5 mm) rostrum length; Dm and Eh were intermediate. Length and width of mandible tip areas holding serration was bigger for Nv (106.0 and 30.2 µm, respectively) and smaller for Pg (71.1 and 23.7 µm), with all species having four central teeth and three pairs of lateral teeth. The inner mandible surface showed squamous texture. Cross-section of food and salivary canals (Fc and Sc) indicated greater area for Nv and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Electron microscopy; Mouth parts morphology; Teneral adults. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262010000400008 |
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| Malaguido,Andréa B.; Panizzi,Antônio R.. |
| Avaliou-se os danos quantitativos e qualitativos do percevejo Euschistus heros (F.) aos aquênios de girassol (Helianthus annuus L.). O experimento foi conduzido na área experimental da Embrapa Soja, em Londrina, PR, onde foi semeada a cv. Embrapa 122 - V2000. Foram instaladas gaiolas (2,0 x 2,0 x 1,5m) cobertas com tela de nylon, contendo duas fileiras de girassol, totalizando 10 plantas/gaiola. As plantas foram infestadas com adultos de E. heros, nos níveis de 2, 4 e 8 insetos/planta, nos seguintes períodos: estágio R3 (segunda fase de alongamento do broto floral) até a colheita; estágio R6 (fase final de florescimento) até a colheita; e estágio R9 (maturação fisiológica dos aquênios) até a colheita. As gaiolas testemunhas permaneceram livres de insetos.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Heteroptera; Percevejo; Helianthus annuus. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591998000400005 |
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| Malaguido,Andréa B.; Panizzi,Antônio R.. |
| Observou-se a ocorrência de Alcaeorrhynchus grandis (Dallas) (Hemiptera: Pentatomidae: Asopinae) predando larvas da lagarta do girassol Chlosyne lacinia saundersii Doubleday & Hewitson em girassol (Helianthus annuus L.) na Fazenda Experimental da Embrapa Soja, no norte do Paraná, durante janeiro-fevereiro de 1998. De ovos coletados em campo, ninfas do percevejo foram criadas em laboratório alimentadas com larvas de C. l. saundersii obtidas no campo. As ninfas também foram criadas com larvas da lagarta da soja Anticarsia gemmatalis Hübner obtidas em laboratório, para comparação. Nenhuma ninfa de A. grandis sobreviveu até a idade adulta, atingindo 100% de mortalidade já no 3º instar, quando alimentadas com larvas de C. l. saundersii. Quando... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Hemiptera; Lepidoptera; Helianthus annuus; Predator. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591998000400024 |
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| Ventura,Maurício U.; Panizzi,Antônio R.. |
| Neomegalotomus parvus (West.) behavior related to choosing crevices of pigeon pea, Cajanus cajan (L.) Millsp., pods to lay eggs were studied. Blocking antennae, tarsi, eyes, abdomen, or all structures simultaneously, did not affect the site of the pod (crevices) chosen to lay eggs. Oviposition occurred mainly in the afternoon. Most eggs were laid from 4 to 6 pm. Females moved antennae alternately up and down. Dabbing/antennation was accomplished, first with antennae and then with antennae and labial tip and the ovipositor was exposed and swept over the surface of the pod, leading to oviposition. Eggs were held together with an adhesive substance. Mechanoreceptors were observed on the ovipositor. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Cicardian rhythm; Cajanus cajan. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80592000000300002 |
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| Registros recuperados: 31 | |
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