My bulbs have bugs. What do I need to use that won't kill my plants?

I have several flowers and shrubs (marigolds, hydrageas, azaleas, roses, black eyed susans ect.) and none of them have signs of bugs; but yet my dahlias, begonias, and my camassias are very much infested. Does anyone have a clue as to what bugs eat only bulbs, and what I can use to kill them without killing my bulbs or the other flowers that won't cost me much?

My bulbs have bugs. What do I need to use that won't kill my plants?
BEGONIA INSECT PROBLEMS








Thrips cause irregular, reddish brown lines, in the upper


sides of the leaves. On the undersides of the leaves,


rusty brown spots form along the main veins. The insects


cause the undersides of leaves to become silvery and the


leaves may be deformed.





Mealybugs look like white puffs of cotton. They suck


plant juices and heavy infestations will coat the leaves


with sticky honeydew. Use house plant insect sprays


according to label directions.





Mites are very small and are hard to see without a


magnifying glass. Heavy infestations can cover the leaves


with very fine webbing. The plants gradually lose their


green color and appear dusty or speckled. Use a house


plant insect spray according to label directions.





Aphids suck plant juices and are usually found at the stem


tips. A heavy infestation will coat the leaves with


sticky honeydew. A black, sooty mold can grow on the


honeydew. The insects can be green, white, pink, or


black.





Whitefly is named for the adult, a small, white fly. The


immature whitefly is a small, almost translucent scale-like


insect. This insect is hard to control. Use a house plant


spray especially formulated for whitefly.
Reply:Slugs could be the culprit. Try seven dust, it will kill just about all pest infestations. I'm not sure it's sake around pets,however.
Reply:are you sure it's a bug and not a disease or a fungus? What color is the "bug"?





If your state allows the sale of live ladybugs, buy a couple of bags at Home Depot or a garden store. The ladybugs eat a lot of different kind of pests, they work much better than sprays and they are eco-friendly.
Reply:Take a bunch of cigarette butts and put them in a large jar of water. Let it sit for a day or so. Scrape out the butts, and spray your plants with the nasty water brown water.
Reply:try a sugary substance like soda or beer
Reply:mix water with alcohol and put it in a spray bottle and spray lightly every 3 days
Reply:Plain water %26amp; dish soap in a spray bottle.





Lemon juice %26amp; dish soap in a spray bottle.





Neem oil.





Sevin dust.
Reply:A garlic spray , a pepper spray, orange oil, most plant nursery's sell organic sprays like the Garlic etc. it won't kill the bugs but will stop them.
Reply:You may have Thrips. You can buy a powdered insecticide at your local garden store. Dust it on the bulbs. Ib you buy any new bulbs be sure to inspect them closely for bugs before taking them home.
Reply:Use an insecticide that doesn't affect plants you can check on the bottle it'll say.