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- Title
Identification of the wood-borer and the factors affecting its attack on Caryocar brasiliense trees in the Brazilian Savanna.
- Authors
Leite, Germano Leão Demolin; Alves, Sérgio Monteze; Nascimento, Aline Fonseca; do Nascimento Lopes, Paulo Sérgio; Ferreira, Paulo Sérgio Fiúza; Zanuncio, José Cola
- Abstract
The objectives of this work were to identify the wood-borer of the trunk of Caryocar brasiliense Camb. (Caryocaraceae) and the effects of tree size, chemical and physical soil attributes, and floristic diversity in its attack. The wood-boring caterpillar of the trunck of C. brasiliense belongs to the family Cossidae (Lepidoptera). The number of pupae and the amount of sawdust produced by the wood-borer per tree was higher in the pasture 1 of Montes Claros and pasture in Ibiracatu than in the other four areas (pastures and savanna in Montes Claros and savanna in Ibiracatu). The number of pupae and the amount of sawdust was highest in the trunks of trees with diameters having a breast height (DBH) more than 30 cm. This may explain the severity of attack in the areas mentioned above, which contain a higher percentage of plants with DBH> 30 cm. The soil properties also positively associate with higher attack of the woodborer on trees when the soil is rich in potassium, calcium, magnesium, sum of bases, capacity of cationic exchange, and organic matter, while there was a negative correlation between attack and fine sand content. Systems with less floristic diversity, particularly trees of other species, may concentrate the attack of the wood-borer in the trunks of C. Brasiliense trees.
- Subjects
BRAZIL; DISEASE resistance of plants; PLANT diversity; WOOD borers; PLANT nutrients; SAVANNAS
- Publication
Acta Scientiarum: Agronomy, 2011, Vol 33, Issue 4, p589
- ISSN
1679-9275
- Publication type
Article
- DOI
10.4025/actasciagron.v33i4.8629