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United States Department of Agriculture

Agricultural Research Service

Title: Relationahip Between Helicoverpa Armigera Hubner and Maruca Vitrata (Geyer) Abundance, Damage and Yield Loss in Short-Duration Pigeonpeas

Authors
item Shanower, Thomas
item Bhagwat, V - ICRISAT
item Khan, M - MAHARASHTRA AGRIC. UNIV.
item Dodia, D - GUJARAT AGRIC. UNIVERSITY

Submitted to: Insect Science and Its Application
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: April 8, 2002
Publication Date: November 3, 2003
Citation: SHANOWER, T.G., BHAGWAT, V.R., KHAN, M.I., DODIA, D.A. RELATIONAHIP BETWEEN HELICOVERPA ARMIGERA HUBNER AND MARUCA VITRATA (GEYER) ABUNDANCE, DAMAGE AND YIELD LOSS IN SHORT-DURATION PIGEONPEAS. INSECT SCIENCE AND ITS APPLICATION. V. 23. NO. 3. PP. 251-258. 2003.

Interpretive Summary: The relationship between abundance of two important lepidopteran insect pests Helicoverpa armigera and Maruca vitrata and damage and yield loss in short duration pigeonpea was studied in two multilocation trials in 1995-1996 and 1996-1997 rainy seasons at four locations in India: Patancheru (Andhra Pradesh), Akola (Maharashtra), Sardarkrishi Nagar (Gujarat) and Vamban (Tamil Nadu). Short-duration pigeonpea is heavily attached by these two pests though tere is great variation across locations, genotypes and years. Data from this study showed that indeterminate genotypes generally suffered less pod damage and yield loss despite similar larval populations than determinate genotypes. Vamban and Patancheru had higher pest populations, higher pod damage levels and lower grain yields than Akola and Sardarkrishi Nagar.

Technical Abstract: The relationship between abundance of the lepidopteran borers Helicoverpa armigera Hubner and Maruca vitrata (Geyer) and damage and yield loss in short duration pigeonpea was studied in two multilocation trials in 1995-1996 and 1996-1997 rainy seasons at four locations in India: Patancheru (Andhra Pradesh), Akola (Maharashtra), Sardarkrishi Nagar (Gujarat) and Vamban (Tamil Nadu). Larval populations of Helicoverpa armigera (Hubner) and Maruca vitrata (Geyer) were correlated with pod damage and grain yields. Significant correlation of location, years and genotype on insect population, level of damage and grain yield was obtained. The effect of plant type on lepidopteran pod damage was also observed. The relationships between pod damage, yield and larval population of Helicoverpa and Maruca are discussed.

Last Modified: 11/22/2014
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