Answer: Small holes in leaves usually won't harm vegetable plants so you shouldn't have to worry too much about them. Organic gardeners generally do not use chemical sprays but there are some plant based sprays that are sometimes acceptable to organic growers - neem oil based products, rotenone, sabadilla, and pyrethrum based insecticides might be options for you. As for the yellowing leaves - if they are the oldest leaves on the plant, it's nothing to be concerned about. If the newer leaves are yellowing it can indicate a need for fertilizer or might be a symptom of overwatering. If you haven't fed your plants, now's the time. If you have fed, check your watering practices. Soil needs to dry out slightly between waterings. Hope this information helps.
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