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  • Author or Editor: A. N. Kishaba x
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Abstract

In the paper, Studies of Ovlpositional Preference of Cabbage Looper on Progenies from a Cross between Cultivated Lettuce and Prickly Lettuce by A. N. Kishaba, J. D. McCreight, D. L. Coudriet, T. W. Whitaker, and G. R. Pesho (J. Amer. Soc. Hort. Sci. 105(6):890–892. 1980), the last sentence of the first paragraph should read: Two of the plant introductions, PI261653 (Lactuca saiigna) and PI274372 (L. serriola) were less preferred as oviposition sites (7). In addition, reference 2 of the literature cited should be deleted and references 3 through 12 should be renumbered 2 to 11 to accurately correspond with citations in the text.

Open Access

Abstract

When moths of the cabbage looper, Trichoplusia ni (Hubner), were exposed to 208 entries of lettuce, significant reduction in oviposition occurred on 8 cultivars, 4 breeding lines, and 17 Plant Introductions. Preference for any 1 cultivar varied depending on the host choice offered. Looper moths preferred younger lettuce plants when plantings of 1 host entry were made as little as 1 week apart. One introduction, each, of Lactuca serriola L. and L. saligna L. were less attractive to looper moths than any entry of L. sativa, and may be valuable sources of resistance to that insect pest.

Open Access

Abstract

F1 progenies from a cross between Lactuca sativa L. breeding line 54671 and L. serriola L. PI 274372 (resistant to the cabbage looper, Trichoplusia ni (Hubner), averaged 42 ± 6 looper eggs per plant, compared to 213 ± 25 for the 54671 parent and 17 ± 4 for PI 274372. Two F2 populations varied widely in plant damage inflicted by the resulting larvae when they were exposed to 4 releases of adult loopers but the damage distribution was skewed towards the resistant parent. Antixenosis of 16 F3 progenies was independent of plant size (r ranged from 0.02 to 0.52) and of plant type (r ranged from 0.00 to 0.57).

Open Access