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The pollination of greenhouse sweet pepper (Capsicum annuum L. var. grossum cv. Superset) by Bombus impatiens Cr. was investigated in Ste. Scholastique, Quebec for two periods, 27 June-15 July and 4-18 August, 1995 to determine the pollination effectiveness of B. impatiens compared to a mechanical method (vibration wand) and natural greenhouse ventilation (NGV) and to determine the foraging activity of B. impatiens throughout the pollination period. B. impatiens pollination resulted in a significantly greater number of seeds per fruit and a greater percent marketable fruit, due to a positive quadratic relationship between seed number and fruit weight, than both vibration wand and NGV. Both B. impatiens and NGV resulted in a significantly greater fruit set than vibration wand. Per fruit, an extra profit of $0.06 for green and $0.13 for red sweet peppers could be made by B. impatiens pollination over NGV, due to greater marketable fruit and greater mean fruit weight. B. impatiens pollination was more effective than both vibration wand and NGV even though both the daily activity of the insect at the hive (hive traffic) and their foraging on plants (greenhouse foraging) decreased throughout the pollination period and attained a maximum of only 3 B. impatiens foraging in the greenhouse during the second period. It was estimated that a B. impatiens colony of 30-40 workers could optimally pollinate 17475 plants or a greenhouse size of about 9470 m$ sp2.$

Anthracnose (caused by Colletotrichum capsici or C. gloeosporioides) of bell peppers (Capsicum annum) has become a serious problem in recent years on the Eastern Shore of Virginia. The purpose of this research was to characterize isolates of the fungus from the Eastern United States, to compare them with the type species from the American Type Culture Collection, and to evaluate fungicides for disease management. Two cultivars of pepper were inoculated with a conidial suspension, and held in a dew chamber. Lesions were counted and measured every 48 hours. The type species was either not pathogenic or only mildly virulent; most of the virulent isolates originated in areas of intensive pepper production. In addition to pathogenicity experiments and traditional morphology, the Biolog® system was used to compare the ability of fungi to utilize different carbohydrate combinations in 96-well plates. Plates were read at 96 and 168 hours. Analysis of data, by Ward's statistical method, could reliably distinguish field isolates if based on 15 or more replications, but species-level identification was inconsistent. Standard fungicides and new compounds were compared in a field test with four replications of treatments in a randomized complete block design. Fruits were harvested three times, weighed for yield, and the number of marketable and diseased fruit recorded. Aggressive isolates from green pepper were controlled by applications of maneb, or alternation of maneb and strobilurin fungicides. / Master of Science

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A green chile variety trial was planted in the Duncan area of Greenlee county with eleven entries. Curry #9 was the top yielding variety with a yield over 15 tons per acre. Fruit of all varieties were characterized by length, width and taste qualities.

A chile variety trial with 12 cultivars (including one jalapeño variety) was planted in Graham county in 1993. An Alpha selection from Ed Curry was the top yielding variety, producing 9.4 tons/acre. Marketable yields were suppressed by high incidence of blossom-end rot. Yields and fruit characterization of all varieties are included in this paper.