Take the time to learn that there is not a "cure all" for every pest at every stage of it's life cycle. Some won't work if it's going to rain. Some don't work well if it's too hot, etc. You shouldn't use Sevin unless you know it will work for the insect you are trying to get rid of and in most cases there are less harsh chemicals you can use than Sevin. Pest management is complex, if you wish to use chemical products, do so responsibly which goes further than reading the label. If you want to learn, a good place to start is here: Integrated Pest Management This lecture is presented in two parts. Each part is 90-minutes in length. Recorded in Sacramento County in California's Sacramento Valley, this lecture is by Mary Louise Flint, Ph.D., Director, IPM Education and Publications, UC Statewide IPM Project and Extension Entomologist & Cooperative Extension Specialist. Education: B.S. Plant Science, University of California, Davis Ph.D. Entomology, University of California, Berkeley Appointment: 100% Cooperative Extension Research Interests: Integrated pest management of landscape, agricultural and garden pests; biological control of arthropod pests; alternatives to pesticides; adoption of alternative practices by practitioners; innovative delivery of pest management information. Topics discussed in the Integrated Pest Management Lecture: * IPM references and resources * Preventing pest problems * Natural common enemies * Making less toxic pesticide choices * Controlling aphids, scales, caterpillars, coddling moths, tree borers, snails and slugs, and lawn insects. You can watch the programs now online: Just make sure you have Real Player installed or download it free. Integrated Pest Management Part1 90 minutes Integrated Pest Management Part 2 90 minutes You'll want to bookmark the following link to Professor Flint's Lab Research on: Controlling Pests in Gardens and Landscapes: Vegetables and Melons I promise you'll learn one or two things to put in your gardening bag of pest management arsenals. ;) Take the time to learn that there is not a "cure all" for every pest at every stage of it's life cycle. Some won't work if it's going to rain. Some don't work well if it's too hot, etc. Pest management is complex, if you wish to use chemical products, do so responsibly which goes further than reading the label. If you want to learn, a good place to start is here: Integrated Pest Management This lecture is presented in two parts. Each part is 90-minutes in length. Recorded in Sacramento County in California's Sacramento Valley, this lecture is by Mary Louise Flint, Ph.D., Director, IPM Education and Publications, UC Statewide IPM Project and Extension Entomologist & Cooperative Extension Specialist. Education: B.S. Plant Science, University of California, Davis Ph.D. Entomology, University of California, Berkeley Appointment: 100% Cooperative Extension Research Interests: Integrated pest management of landscape, agricultural and garden pests; biological control of arthropod pests; alternatives to pesticides; adoption of alternative practices by practitioners; innovative delivery of pest management information. Topics discussed in the Integrated Pest Management Lecture: * IPM references and resources * Preventing pest problems * Natural common enemies * Making less toxic pesticide choices * Controlling aphids, scales, caterpillars, coddling moths, tree borers, snails and slugs, and lawn insects. You can watch the programs now online: Just make sure you have Real Player installed or download it free. Integrated Pest Management Part1 90 minutes Integrated Pest Management Part 2 90 minutes You'll want to bookmark the following link to Professor Flint's Lab Research on: Controlling Pests in Gardens and Landscapes: Vegetables and Melons I promise you'll learn one or two things to put in your gardening bag of pest management arsenals. ;)

The white marks look like mealybugs to me. I just wipe them off and kill them with my fingers. If that is too gross for you, wear gloves or wipe with a wet cloth or cotton ball.

Slugs and snails love peppers. I keep a pepper plant in my orchid house as a "magnet plant" so that I can go out at night and remove any slugs that I find there. But really, your pepper in your photo looks quite good. You're not going to have pristine foliage and it isn't necessary. Sometimes the predation is so heavy that the leaves are almost skeletonized and the plants photosynthetic ability is diminished. Then you've got problems. You might also have leaf-cutting bees. They leave holes but it's not typically catastrophic damage.

That looks like the tomato fruitworm to me. I heard they like peppers also. I've killed several of them after finding holes in my tomatoes. Below is a thread I made on them which has a picture of one. Some others I've found look more similar to your pic. http://forums.gardenweb.com/forums/load/tomato/msg0710581316371.html