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Research Progress Report 97 February, 1964 Adult Feeding, Egg Deposition and Survival of Larvae of the Cereal Leaf Beetle on Seedling Grains M. Curtis Wilson and Richard E. Shade, Department of Entomology SUMMARY In experiments to determine the extent of feeding and egg deposition of cereal leaf beetle adults corn, oats, wheat and barley were seeded in pots and placed in the field in a cage into which 100 adults were released. The experiment contained one entry of each grain seeded on the same date plus another entry of corn and oats seeded 12 days earlier. Additional tests were conducted by infesting corn and oats to determine larval survival. Results showed that adult beetles would feed readily on oats, barley and wheat. In the case of corn, growth was a factor. The beetles fed heavily on corn 15 inches tall but tended to avoid corn that was only 2 1/2 inches high. In general, oats were preferred to barley or wheat for oviposition, and the latter two were preferred to corn. The younger the smaller grain, the more eggs it received. For instance, twice as many eggs were deposited on oats 4.3 inches tall as on oats 7.2 inches tall. Likewise, wheat and barley that were seeded 12 days later than oats received more eggs. Highest survival of larvae occurred on oats and barley. Sunlight appeared to have a positive influence on the orientation of the cereal leaf beetle for oviposition. INTRODUCTION The cereal leaf beetle, Oulema melanopa (L.), was first found in the mid-west in Michigan and Indiana in 1962. It's occurrance and significance has been reviewed by Fav-inger and Moussa (1963), Ruppel and Wilson (1964), Wilson, Toba, Hodges and Stivers (1964), and Shade and Wilson (1964). However, information is scant on the extent to which various grains are attacked and how serious the damage is. In Europe, Balachowski (1963) considers barley and oats to be the most frequently attacked. Others reporting losses to barley and oats include Averin (1915) and Vere-shtchagin (1914), who also includes wheat. Manolache (1932) reports damage to corn, Rushkovsky(1914) and Knechtel and Manolache (1936) found damage to rye. Hodson (1929) and Venturi (1942) give a rather general discussion of hosts. In field tests where The authors express their appreciation to Gerald G. Teresinski (ARS, PPCD) whose assistance in this study merits more than this acknowledgement. PURDUE UNIVERSITY • Agricultural Experiment Station • Lafayette, Indiana
Object Description
Purdue Identification Number | UA14-13-RPR097 |
Title | Research Progress Report, no. 097 (Feb. 1964) |
Title of Issue | Adult feeding, egg deposition and survival of larvae of the cereal leaf beetle on seedling grains |
Date of Original | 1964 |
Genre | Periodical |
Collection Title | Extension Research Progress Report (Purdue University. Agricultural Extension Service) |
Rights Statement | Copyright Purdue University. All rights reserved. |
Coverage | United States – Indiana |
Type | text |
Format | JP2 |
Language | eng |
Repository | Purdue University Libraries |
Date Digitized | 05/19/2017 |
Digitization Information | Original scanned at 400 ppi on a BookEye 3 scanner using Opus software. Display images generated in Contentdm as JP2000s; file format for archival copy is uncompressed TIF format. |
URI | UA14-13-RPR097.tif |
Description
Title | Page 001 |
Genre | Periodical |
Collection Title | Extension Research Progress Report (Purdue University. Agricultural Extension Service) |
Rights Statement | Copyright Purdue University. All rights reserved. |
Coverage | United States – Indiana |
Type | text |
Format | JP2 |
Language | eng |
Transcript | Research Progress Report 97 February, 1964 Adult Feeding, Egg Deposition and Survival of Larvae of the Cereal Leaf Beetle on Seedling Grains M. Curtis Wilson and Richard E. Shade, Department of Entomology SUMMARY In experiments to determine the extent of feeding and egg deposition of cereal leaf beetle adults corn, oats, wheat and barley were seeded in pots and placed in the field in a cage into which 100 adults were released. The experiment contained one entry of each grain seeded on the same date plus another entry of corn and oats seeded 12 days earlier. Additional tests were conducted by infesting corn and oats to determine larval survival. Results showed that adult beetles would feed readily on oats, barley and wheat. In the case of corn, growth was a factor. The beetles fed heavily on corn 15 inches tall but tended to avoid corn that was only 2 1/2 inches high. In general, oats were preferred to barley or wheat for oviposition, and the latter two were preferred to corn. The younger the smaller grain, the more eggs it received. For instance, twice as many eggs were deposited on oats 4.3 inches tall as on oats 7.2 inches tall. Likewise, wheat and barley that were seeded 12 days later than oats received more eggs. Highest survival of larvae occurred on oats and barley. Sunlight appeared to have a positive influence on the orientation of the cereal leaf beetle for oviposition. INTRODUCTION The cereal leaf beetle, Oulema melanopa (L.), was first found in the mid-west in Michigan and Indiana in 1962. It's occurrance and significance has been reviewed by Fav-inger and Moussa (1963), Ruppel and Wilson (1964), Wilson, Toba, Hodges and Stivers (1964), and Shade and Wilson (1964). However, information is scant on the extent to which various grains are attacked and how serious the damage is. In Europe, Balachowski (1963) considers barley and oats to be the most frequently attacked. Others reporting losses to barley and oats include Averin (1915) and Vere-shtchagin (1914), who also includes wheat. Manolache (1932) reports damage to corn, Rushkovsky(1914) and Knechtel and Manolache (1936) found damage to rye. Hodson (1929) and Venturi (1942) give a rather general discussion of hosts. In field tests where The authors express their appreciation to Gerald G. Teresinski (ARS, PPCD) whose assistance in this study merits more than this acknowledgement. PURDUE UNIVERSITY • Agricultural Experiment Station • Lafayette, Indiana |
Repository | Purdue University Libraries |
Digitization Information | Original scanned at 400 ppi on a BookEye 3 scanner using Opus software. Display images generated in Contentdm as JP2000s; file format for archival copy is uncompressed TIF format. |
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