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Evaluation of plant resistance in field pea by host plant choice behaviour of pea weevil (Bruchus pisorum L.)

implications for pest management

Mendesil Amosa, Esayas (2015). Evaluation of plant resistance in field pea by host plant choice behaviour of pea weevil (Bruchus pisorum L.). Diss. (sammanfattning/summary) Alnarp : Sveriges lantbruksuniv., Acta Universitatis agriculturae Sueciae, 1652-6880 ; 2015:101
ISBN 978-91-576-8400-4
eISBN 978-91-576-8401-1
[Doctoral thesis]

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Abstract

Field pea (Pisum sativum L.) is an important grain legume crop due to its nutritional value and role in improving soil fertility in cropping systems. Insect pests are one of the main production constraints for field pea, with pea weevil (PW), (Bruchus pisorum L.) being an economically important pest of field pea worldwide. Current PW control practices rely on chemical insecticides, which are unaffordable for most small-scale farmers in developing countries such as Ethiopia, where PW is established in northern and north-western regions, causing severe crop losses. Furthermore, pesticides have adverse effects on human health and the environment. This thesis investigated host plant resistance in field pea and mapped Ethiopian farmers’ knowledge and management practices to control PW. The farmers surveyed were aware of PW and able to identify damaged seeds based on common symptoms, but most considered PW a storage pest. To resolve this knowledge gap, it is important to provide training for these farmers. In addition, development of integrated pest management strategies for PW is vital for sustainable production of field pea. Most Ethiopian field pea accessions that were screened for resistance to PW were found to lack resistance and only a few accessions showed moderate levels of resistance based on percentage seed damage (PSD). Gene bank accessions and newly collected populations performed better than released varieties. Some of the accessions formed neoplasm in the greenhouse due to neoplastic gene (Np) and these genotypes had less PSD than non-Np genotypes. Ultraviolet light suppressed neoplasm formation in Np genotypes, while intercropping of Np genotypes with sorghum enhanced neoplasm formation. Female PW use flower volatiles to locate host plants, but no discrimination between genotypes based on flower volatiles was found. However, oviposition patterns reflected the resistance pattern found in field screening. Adet was an attractive genotype for oviposition, while non-host plants (Pisum fulvum Sibth. et Sm. and Lathyrus sativus L.) were less preferred by female PW. Pod morphological traits such as pod wall thickness, trichomes and neoplasm may influence oviposition acceptance by female weevils. These results can be used in developing alternative pest management strategies for PW.

Authors/Creators:Mendesil Amosa, Esayas
Title:Evaluation of plant resistance in field pea by host plant choice behaviour of pea weevil (Bruchus pisorum L.)
Subtitle:implications for pest management
Series/Journal:Acta Universitatis agriculturae Sueciae (1652-6880)
Year of publishing :15 September 2015
Depositing date:16 September 2015
Volume:2015:101
Number of Pages:43
Papers/manuscripts:
NumberReferences
IAbel Teshome, Esayas Mendesil, Mulatu Geleta, Derege Andargie, Peter Anderson, Birgitta Rämert, Emiru Seyoum, Ylva Hillbur, Kifle Dagne, Tomas Bryngelsson (2015). Screening the primary gene pool of field pea (Pisum sativum L. subsp. Sativum) in Ethiopia for resistance against pea weevil (Bruchus pisorum L.). Genet Resour Crop Evol 62, 525-538.
IIEsayas Mendesil, Birgitta Rämert, Ylva Hillbur, Peter Anderson (2015). Attraction of pea weevil (Bruchus pisorum L.) to field pea flower volatiles. (Manuscript).
IIIEsayas Mendesil, Birgitta Rämert, Salla Marttila, Ylva Hillbur, Peter Anderson (2015). Oviposition preference of pea weevil (Bruchus pisorum L.) among host and non-host plants and its implications for pest management. (Submitted).
IVAbel Teshome, Tomas Bryngelsson, Esayas Mendesil, Salla Marttila, Mulatu Geleta (2015). Enhancing neoplasm expression in field pea (Pisum sativum L.) via intercropping and its significance to pea weevil (Bruchus pisorum L.) management. (Submitted).
VEsayas Mendesil, Zekarias Shumeta, Peter Anderson, Birgitta Rämert (2015). Smallholder farmers‟ perspectives on pea weevil and pest management practices in northern and north-western Ethiopia. (Submitted).
Place of Publication:Alnarp
Publisher:Department of Plant Protection Biology, Swedish University of Agricultural Sciences
ISBN for printed version:978-91-576-8400-4
ISBN for electronic version:978-91-576-8401-1
ISSN:1652-6880
Language:English
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:H Protection of plants and stored products > H01 Protection of plants - General aspects
H Protection of plants and stored products > H10 Pests of plants
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Zoology
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
Agrovoc terms:bruchus, insecta, pests of plants, pisum sativum, peas, host plant resistance, oviposition, trichomes, neoplasms, integrated pest management
Keywords:Bruchus pisorum, Field pea, host selection, IPM, legume, neoplasm, oviposition, pea weevil, plant resistance, trichome
URN:NBN:urn:nbn:se:slu:epsilon-e-2937
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-2937
ID Code:12614
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Protection Biology
Deposited By: Mr Esayas Mendesil Amosa
Deposited On:17 Sep 2015 10:05
Metadata Last Modified:03 Oct 2015 05:42

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