This brochure from the North American Pollinator Protection Campaign describes insecticide alternatives. If you do need to apply chemicals, the brochure provides tips on how to do it with the least harm to pollinators.
Just because a pesticide is marketed as “organic” doesn’t mean it’s safer. This article from Off the Grid News lists common organic pesticides by their toxicity to bees. It also describes non-chemical ways to deal with pest issues in your garden.
The best way to help pollinators is to provide more of the food that they need to survive. Native plants can support hundreds more species of pollinators than non-native ornamentals, so as much as possible, incorporate native plants into your garden and landscaping.
More than 4,000 species of bees are native to North America, and most don’t form hives and rarely sting. You can help bees by building or buying a wood or bamboo nesting house for them. Note: due to fungal infestations, replace your bee nesting houses every 2-3 years.
When dealing with small infestations, mechanical control techniques like hand-pulling, cutting, or brush hogging can be effective. These techniques require more work, especially for long-term control, but they can reduce or eliminate the need for herbicide.
Sometimes there’s no other way to control an invasive plant than to apply herbicide. Used in low quantities and with proper application techniques, herbicide can address many invasive plant problems with minimal side effects on the surrounding environment.