Pickleworm:1 Survival, Development, and Oviposition on Selected Hosts2

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Abstract
No differences were noted in the survival and development of pickleworm ( Diaphania nitidalis (Stoll) larvae on excised foliage, flowers, and fruit of several edible cucurbit species, cultivars, and plant introductions. However, larval survival was low on foliage of Lagenaria siceraria (Mol.) Standl., the white-flowered gourd. Larvae were able to develop on bean flowers and fruit and tomato fruit. In laboratory choice tests, larvae preferred cucumber foliage to foliage of PI's 269480, 302418, and L. siceraria but readily accepted whole plants of the former 2 entries. Survival of newly hatched larvae was low on small Butternut squash plants. In large cage oviposition tests, the most eggs were laid on Early Yellow Summer Crookneck and fewest on Carolina cucumber and PI 169399. Watermelon was least preferred for oviposition in a field test.

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