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Pest damage on Jatropha curcas (Euphorbiaceae): the effect of seedling irrigation in Sahelian Niger

OAR@ICRISAT

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Relation http://oar.icrisat.org/9839/
http://dx.doi.org/10.1017/S1742758416000084
10.1017/S1742758416000084
 
Title Pest damage on Jatropha curcas (Euphorbiaceae): the effect of seedling irrigation in Sahelian Niger
 
Creator Thunes, K H
Ratnadass, A
Nikiema, A
Claude, Z
 
Subject Irrigation
Jatropha
Niger
 
Description Herbivory by insects and mites on physic nut (Jatropha curcas L.) seedlings was investigated and compared with irrigation in the semi-arid Sahelian Niger, utilizing a randomized complete block design experiment. Three water treatment protocols were applied and the types of damage were recorded. Less than 5% of the seedlings died during the 10-month trial period with sap suckers causing the most damage on the surviving plants. Plants with high production of biomass and leaf cover (foliage) were most strongly positively correlated with irrigation and were also the plants that endured the highest degree of herbivory. The low dieback may indicate that defence mechanisms counteract seedling herbivory and that drought-stressed plants invest more in their defence mechanism system than vital plants.
 
Publisher icipe
 
Date 2016-07
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/9839/1/1742758416000084.pdf
Thunes, K H and Ratnadass, A and Nikiema, A and Claude, Z (2016) Pest damage on Jatropha curcas (Euphorbiaceae): the effect of seedling irrigation in Sahelian Niger. International Journal of Tropical Insect Science, 36 (03). pp. 140-145. ISSN 1742-7584