Potential attraction of Tithonia diversifolia (Hemsl) A. Gray and Tithonia rotundifolia (Mill.) S. F. Blake (Asteraceae) for use in conservative biological control
Keywords:
organic production, management of phytophagous insects, natural enemies, functional diversificationAbstract
The objective of this work was to identify the attractive potential of Tithonia diversifolia (Hemsl)
A. Gray and T. rotundifolia (Mill) S.F. Blake for natural enemies, in two different edaphic climatic
conditions of the State of Rio de Janeiro. The experiment was conducted in the experimental
fields of UFRRJ, in Seropédica and Pesagro-Rio, in Paty do Alferes, between October
2015 and July 2016, with biweekly collections of arthropods. In Paty do Alferes, 97 and 486
arthropods were collected, in Seropédica 195 and 182, in T. diversifolia and T. rotundifolia,
respectively. There were 36 families of arthropods in T. diversifolia and 30 in T. rotundifolia; Of
these, 20 and 13 families were of natural enemies, in that order. The families with the highest
frequency for the two plants studied were Coccinellidae, Dolichopodidae, Carabidae. Among
the phytophagous plants, the presence of Cicadellidae was highlighted for both plants. These
crops have attractive potential and can be used in the diversification of agroecosystems.
 
						 
							