17 research outputs found
BIOECOLOGY AND MANAGEMENT OF ERVA-MATE BORER, Hedypathes betulinus (KLUG, 1825) (COLEOPTERA: CERAMBYCIDAE)
A cultura da erva-mate ( Ilex paraguariensis A.St.-Hil.) apresenta
grande import\ue2ncia social, cultural e econ\uf4mica no sul do
Brasil. Com a forma\ue7\ue3o de povoamentos puros e o aumento da
\ue1rea de plantio, observou-se um aumento populacional de muitas
esp\ue9cies de insetos. Dentre os insetos-praga, a
broca-da-erva-mate, Hedypathes betulinus (Klug, 1825) (Coleoptera:
Cerambycidae), \ue9 a de maior import\ue2ncia econ\uf4mica, em
raz\ue3o dos danos que causa e seu dif\uedcil controle. A fase
larval ocorre no interior dos galhos e troncos das plantas,
dificultando sua detec\ue7\ue3o e manejo. O manejo cultural e o
mec\ue2nico s\ue3o os mais indicados, como a coleta de adultos,
poda e queima de partes atacadas da planta, nutri\ue7\ue3o
equilibrada, densidade adequada de plantas e manuten\ue7\ue3o de
\ue1reas com vegeta\ue7\ue3o nativa ou ainda a
introdu\ue7\ue3o do policultivo. Com essas t\ue9cnicas, espera-se
um maior equilibrio do agroecossistema e, com isso, a
diminui\ue7\ue3o dos insetos-praga a um n\uedvel aceit\ue1vel.
Portanto, o objetivo deste trabalho \ue9 reunir e discutir as
informa\ue7\uf5es da bioecologia e manejo da broca-da-erva-mate.The erva-mate ( Ilex paraguariensis A.St.-Hil.) has a social,
cultural and economic importance in the southern states of Brazil. The
pure stands of this culture was responsible for the increase of many
species of insects. Hedypathes betulinus (Klug, 1825) (Coleoptera:
Cerambycidae) is considered the main pestfrom an economic viewpoint
because of its difficult control and potential for damage. The larval
phase occurs inside the twings and trunks, what makes more difficult to
deal with its detention and management. Cultural and mechanical
management are the most indicated, such as collection of adults,
prunning and burning of plant parts damaged by the insect, balanced
nutrition, adequate plant density and maintenance of areas with native
vegetation or also the introduction of policulture. These strategies
may increase the agroecossystem balance and thus a reduction of the
insect-pest to an aceptable level. Therefore, the objective of this
study was to assemble and the discuss the information on the bioecology
and management of erva-mate borer
OCCURRENCE OF Cryptophlebia carpophagoides CLARKE, 1951 (LEPIDOPTERA: Olethreutidae) IN Enterolobium contortisiliquum (VELL.) MORONG FRUIT IN THE STATE OF RIO GRANDE DO SUL, BRAZIL
\uc9 registrada pela primeira vez a ocorr\ueancia de Cryptophlebia
carpophagoides Clarke, 1951 (Lepidoptera: Olethreutidae) em frutos de
timba\ufava, Enterolobium contortisiliquum (Vell.) Morong, no estado
do Rio Grande do Sul, Brasil. Os frutos atacados foram coletados no
campus da Universidade Federal de Santa Maria, Santa Maria, nos meses
de maio e junho de 2003 e 2004. Foi constatado que as lagartas
possivelmente causam dano aos frutos da esp\ue9cie em
conseq\ufc\ueancia da libera\ue7\ue3o de serragem que pode
amea\ue7ar a sanidade, vigor e a germina\ue7\ue3o das sementes.The occurrence of Cryptophlebia carpophagoides Clarke, 1951,
(Lepidoptera: Olethreutidae), in fruit of Enterolobium contortisiliquum
(Vell.) Morong, has bun first registered in the state of Rio Grande do
Sul, Brazil. The damaged fruit was collected in the campus of National
University of Santa Maria, Santa Maria, from May to June of 2003 and
2004. It was evidenced that the caterpillars damage the fruit of that
specie affecting the integrety, the vigor and the germination of the
seeds
White grubs (Coleoptera, Melolonthidae) in the "Planalto Region", Rio Grande do Sul state, Brazil: Key for identification, species richness and distribution
BIOECOLOGY AND MANAGEMENT OF ERVA-MATE BORER, Hedypathes betulinus (KLUG, 1825) (COLEOPTERA: CERAMBYCIDAE)
A cultura da erva-mate ( Ilex paraguariensis A.St.-Hil.) apresenta
grande importância social, cultural e econômica no sul do
Brasil. Com a formação de povoamentos puros e o aumento da
área de plantio, observou-se um aumento populacional de muitas
espécies de insetos. Dentre os insetos-praga, a
broca-da-erva-mate, Hedypathes betulinus (Klug, 1825) (Coleoptera:
Cerambycidae), é a de maior importância econômica, em
razão dos danos que causa e seu difÃcil controle. A fase
larval ocorre no interior dos galhos e troncos das plantas,
dificultando sua detecção e manejo. O manejo cultural e o
mecânico são os mais indicados, como a coleta de adultos,
poda e queima de partes atacadas da planta, nutrição
equilibrada, densidade adequada de plantas e manutenção de
áreas com vegetação nativa ou ainda a
introdução do policultivo. Com essas técnicas, espera-se
um maior equilibrio do agroecossistema e, com isso, a
diminuição dos insetos-praga a um nÃvel aceitável.
Portanto, o objetivo deste trabalho é reunir e discutir as
informações da bioecologia e manejo da broca-da-erva-mate.The erva-mate ( Ilex paraguariensis A.St.-Hil.) has a social,
cultural and economic importance in the southern states of Brazil. The
pure stands of this culture was responsible for the increase of many
species of insects. Hedypathes betulinus (Klug, 1825) (Coleoptera:
Cerambycidae) is considered the main pestfrom an economic viewpoint
because of its difficult control and potential for damage. The larval
phase occurs inside the twings and trunks, what makes more difficult to
deal with its detention and management. Cultural and mechanical
management are the most indicated, such as collection of adults,
prunning and burning of plant parts damaged by the insect, balanced
nutrition, adequate plant density and maintenance of areas with native
vegetation or also the introduction of policulture. These strategies
may increase the agroecossystem balance and thus a reduction of the
insect-pest to an aceptable level. Therefore, the objective of this
study was to assemble and the discuss the information on the bioecology
and management of erva-mate borer
BIOECOLOGIA E MANEJO DA BROCA-DA-ERVA-MATE, Hedypathes betulinus (KLUG, 1825) (COLEOPTERA: CERAMBYCIDAE)
A cultura da erva-mate (Ilex paraguariensis A.St.-Hil.) apresenta grande importância social, cultural e econômica no sul do Brasil. Com a formação de povoamentos puros e o aumento da área de plantio, observou-se um aumento populacional de muitas espécies de insetos. Dentre os insetos-praga, a broca-da-erva-mate, Hedypathes betulinus (Klug, 1825) (Coleoptera: Cerambycidae), é a de maior importância econômica, em razão dos danos que causa e seu difÃcil controle. A fase larval ocorre no interior dos galhos e troncos das plantas, dificultando sua detecção e manejo. O manejo cultural e o mecânico são os mais indicados, como a coleta de adultos, poda e queima de partes atacadas da planta, nutrição equilibrada, densidade adequada de plantas e manutenção de áreas com vegetação nativa ou ainda a introdução do policultivo. Com essas técnicas, espera-se um maior equilibrio do agroecossistema e, com isso, a diminuição dos insetos-praga a um nÃvel aceitável. Portanto, o objetivo deste trabalho é reunir e discutir as informações da bioecologia e manejo da broca-da-erva-mate
OCCURRENCE OF Cryptophlebia carpophagoides CLARKE, 1951 (LEPIDOPTERA: Olethreutidae) IN Enterolobium contortisiliquum (VELL.) MORONG FRUIT IN THE STATE OF RIO GRANDE DO SUL, BRAZIL
É registrada pela primeira vez a ocorrência de Cryptophlebia
carpophagoides Clarke, 1951 (Lepidoptera: Olethreutidae) em frutos de
timbaúva, Enterolobium contortisiliquum (Vell.) Morong, no estado
do Rio Grande do Sul, Brasil. Os frutos atacados foram coletados no
campus da Universidade Federal de Santa Maria, Santa Maria, nos meses
de maio e junho de 2003 e 2004. Foi constatado que as lagartas
possivelmente causam dano aos frutos da espécie em
conseqüência da liberação de serragem que pode
ameaçar a sanidade, vigor e a germinação das sementes.The occurrence of Cryptophlebia carpophagoides Clarke, 1951,
(Lepidoptera: Olethreutidae), in fruit of Enterolobium contortisiliquum
(Vell.) Morong, has bun first registered in the state of Rio Grande do
Sul, Brazil. The damaged fruit was collected in the campus of National
University of Santa Maria, Santa Maria, from May to June of 2003 and
2004. It was evidenced that the caterpillars damage the fruit of that
specie affecting the integrety, the vigor and the germination of the
seeds
White grubs (Coleoptera, Melolonthidae) in the "Planalto Region", Rio Grande do Sul state, Brazil: Key for identification, species richness and distribution
White grubs (Coleoptera, Melolonthidae) in the "Planalto Region", Rio Grande do Sul state, Brazil: Key for identification, species richness and distribution. The objective of this study was to survey the occurrence and geographic distribution of white grub species (Coleoptera, Melolonthidae) in cultivated and non-cultivated fields of the "Planalto Region", Rio Grande do Sul state, Brazil and develop a key at genus-level. Twenty-eight species from 15 genera and three subfamilies were recorded: Dynastinae, Melolonthinae and Rutelinae. The species or genera recorded for the first time in the state are: Cyclocephala metrica, C. tucumana, Isonychus albicinctus, Liogenys bidenticeps, L. fusca, L. obesa and L. sinuaticeps, Paranomala violacea, as well as unidentified species of Amononyx, Dicrania, Leucothyreus, Macrodactylus, Plectris and Rhizogeniates. Among the species recorded, 23 were associated with winter crops. Only Cyclocephala metrica, Dyscinetus rugifrons, two species of Leucothyreus and one species of the tribe Sericini were not present in cultivated crop fields. Cyclocephala flavipennis and Diloboderus abderus occurred in most of the municipalities sampled, often associated with Plectris sp., C. modesta and C. putrida. The highest richness of melolonthids was concentrated in the northeast of the Planalto region
First record of species of Liogenys (Coleoptera, Melolonthidae) associated with winter grain crops in Rio Grande do Sul (Brazil)
First record of species of Liogenys (Coleoptera, Melolonthidae) associated with winter crops in Rio Grande do Sul (Brazil). Some species of Liogenys GuerÃn-Meneville, 1831 are known to cause damage to soybean, corn and other summer crops in the Brazilian "Cerrado" region. This work aimed to identify melolontid larvae associated with winter crops in Rio Grande do Sul state. Larvae and adults of Liogenys species were collected from the municipalities of IjuÃ, Cruz Alta, Manoel Viana, São Luiz Gonzaga and São Francisco de Assis. The specimens were identified as L. bidenticeps Moser, 1919; L. fusca Blanchard, 1851, L. obesa Burmeister, 1855, and L. sinuaticeps Moser, 1918. This is the first record of these species associated with winter grain crops, for Rio Grande do Sul State. Biological and behavioral studies are necessary to confirm their association with host plants
First record of species of Liogenys (Coleoptera, Melolonthidae) associated with winter grain crops in Rio Grande do Sul (Brazil)
First record of species of Liogenys (Coleoptera, Melolonthidae) associated with winter crops in Rio Grande do Sul (Brazil). Some species of Liogenys GuerÃn-Meneville, 1831 are known to cause damage to soybean, corn and other summer crops in the Brazilian "Cerrado" region. This work aimed to identify melolontid larvae associated with winter crops in Rio Grande do Sul state. Larvae and adults of Liogenys species were collected from the municipalities of IjuÃ, Cruz Alta, Manoel Viana, São Luiz Gonzaga and São Francisco de Assis. The specimens were identified as L. bidenticeps Moser, 1919; L. fusca Blanchard, 1851, L. obesa Burmeister, 1855, and L. sinuaticeps Moser, 1918. This is the first record of these species associated with winter grain crops, for Rio Grande do Sul State. Biological and behavioral studies are necessary to confirm their association with host plants