Oviposition deterrent and ovicidal properties of Calotropis gigantea (L.) leaf extract to Paraeucosmetus pallicornis (Dallas) in rice
Journal Title: Journal of Plant Protection Research - Year 2017, Vol 57, Issue 3
Abstract
Paraeucosmetus pallicornis (Dallas) is a new pest in Indonesia which decreases rice production and quality. This pest causes the grains to become flat, hollow, brownish, break easily when milled, and bitter. This research represents the first study on Calotropis gigantean extract as an oviposition deterrent and ovicide against P. pallicornis. The study was conducted under laboratory conditions using four extract concentrations i.e. 0.5, 1.0, 1.5 and 2.0%. The oviposition deterrent effect was determined by counting the number of eggs laid and hatched. Percent reproductive control (PRC) and ovicidal activity was calculated using Tennyson’s formula. Results indicated that all concentrations of C. gigantea leaf extract reduced the number of eggs laid and hatched. The PRC also showed a gradual reduction of oviposition of the P. pallicornis and the ovicidal activity ranged between 86.5 and 100%. The extract concentration which showed the highest potential as an oviposition deterrent and ovicide against P. pallicornis was in the range of 1.0–2.0%. The overall results indicated that C. gigantea leaf extract has the potential to be used as an oviposition deterrent and ovicide against P. pallicornis.
Authors and Affiliations
Sylvia Sjam, Ade Rosmana, Vien Sartika Dewi, Dian Ekawati Sari, Untung Surapati Tresnaputra, Asti Herawati
Keywords
Related Articles
- EP ID EP295110
- DOI 10.1515/jppr-2017-0034
- Views 53
- Downloads 0
Oviposition deterrent and ovicidal properties of Calotropis gigantea (L.) leaf extract to Paraeucosmetus pallicornis (Dallas) in rice
Paraeucosmetus pallicornis (Dallas) is a new pest in Indonesia which decreases rice production and quality. This pest causes the grains to become flat, hollow, brownish, break easily when milled, and bitter. This researc...
Nutrient content restructuring and CT-measured density, volume attritions on damaged beans caused by Acanthoscelides obtectus Say (Coleoptera: Chrysomelidae)
Leguminous plant products have great nutritional and economic importance in the European Union, which is reflected by its protein policy. These harvested yields are risked by stored product pests, such as Acanthoscelides...
Changes over the last ten years in the fauna structure of aphids inhabiting the vegetation of allotment gardens in Poznań
The vegetation of allotment gardens is an important element of urban green areas and constitutes a habitat where many groups of insects exist, including aphids. This research involved the monitoring of winged morphs of a...
Occurrence and distribution of nematodes in rice fields in Guilan province, Iran and the first record of Mylonchulus polonicus (Stefanski, 1915) Cobb, 1917 (Nematoda: Mononchina)
The distribution of nematodes was studied in rice fields in Guilan province, Iran, from 2014 to 2016. Nematode biodiversity of 250 soil and root samples was examined. Thirty nematode species were identified morphological...
Isolation, characterization and toxicity of native Bacillus thuringiensis isolates from different hosts and habitats in Iran
Bacillus thuringiensis is a Gram-positive, aerobic, facultative anaerobic and endosporeforming bacterium. Different strains of this species have the ability to produce parasporal crystalline inclusions which are toxic to...