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Potential of Trap Crops for Integrated Management of the Tropical Armyworm, Spodoptera litura in Tobacco
- Source :
- Journal of Insect Science
- Publication Year :
- 2010
- Publisher :
- University of Wisconsin Library, 2010.
-
Abstract
- The tropical armyworm, Spodoptera litura (F.) (Lepidoptera: Noctuidae), is an important pest of tobacco, Nicotiana tabacum L. (Solanales: Solanaceae), in South China that is becoming increasingly resistant to pesticides. Six potential trap crops were evaluated to control S. litura on tobacco. Castor bean, Ricinus communis L. (Malpighiales: Euphorbiaceae), and taro, Colocasia esculenta (L.) Schott (Alismatales: Araceae), hosted significantly more S. litura than peanut, Arachis hypogaea L. (Fabales: Fabaceae), sweet potato, Ipomoea batata Lam. (Solanales: Convolvulaceae) or tobacoo in a greenhouse trial, and tobacco field plots with taro rows hosted significantly fewer S. litura than those with rows of other trap crops or without trap crops, provided the taro was in a fast-growing stage. When these crops were grown along with eggplant, Solanum melongena L. (Solanales: Solanaceae), and soybean, Glycines max L. (Fabales: Fabaceae), in separate plots in a randomized matrix, tobacco plots hosted more S. litura than the other crop plots early in the season, but late in the season, taro plots hosted significantly more S. litura than tobacco, soybean, sweet potato, peanut or eggplant plots. In addition, higher rates of S. litura parasitism by Microplitis prodeniae Rao and Chandry (Hymenoptera: Bracondidae) and Campoletis chlorideae Uchida (Ichnumonidae) were observed in taro plots compared to other crop plots. Although taro was an effective trap crop for managing S. litura on tobacco, it did not attract S. litura in the seedling stage, indicating that taro should either be planted 20-30 days before tobacco, or alternative control methods should be employed during the seedling stage.
- Subjects :
- Oviposition
cultural control
Wasps
Spodoptera litura
Spodoptera
Choice Behavior
Article
Host-Parasite Interactions
Crop
Magnoliopsida
Trap crop
Animals
Colocasia esculenta
Pest Control, Biological
Population Density
biology
business.industry
Pest control
oviposition preference
General Medicine
biology.organism_classification
Cultural control
trap crop
Agronomy
Insect Science
Larva
Female
Solanum
business
Solanaceae
attraction
Subjects
Details
- Language :
- English
- ISSN :
- 15362442
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Journal of Insect Science
- Accession number :
- edsair.doi.dedup.....cbc79128c07437648a2215bc05475b48