Sunspray™ MLO

An effective mosquito
larvicide oil

This highly refined spray oil is specifically designed to kill mosquito larvae and pupae. Applied by either aerial or ground spray, Sunspray MLO leaves a thin surface film over water in mosquito breeding areas. It kills the mosquito larvae and pupae by suffocation before they reach the adult stage. No mosquito is known to have developed resistance to this type of control.

When to apply

Since mosquitoes can hatch within 5 to 7 days of warm weather after egg deposition, stagnant water pools exposed for such a time should be treated with Sunspray MLO.

Where to apply

Sunspray MLO may be applied to the water surface in swamps, marshes, intermittently flooded areas, drainage areas, storm sewer catch basins, waste treatment facilities, settling ponds, ditches, log ponds, temporary rain pools, stagnant water pools, abandoned swimming pools, fountains and ponds.

Sunspray MLO Properties Chart

(Click image to enlarge)

  • Low toxicity
  • For ground and aerial application
  • Registered as a fully formulated end-use product

Mosquito Life Cycle

Understanding the Life Cycle of a Mosquito

Mosquitoes need water to reproduce. The female mosquito lays her eggs in standing water. The egg hatches into a larva in the water, then the larva becomes a pupa, and becomes a flying adult mosquito in 1 to 3 weeks.

Click the links below to download the Sunspray MLO SDS (PDF format):

▶ Can't find an SDS? Visit our SDS section or call us at 1.800.456.4786

Base Oils

HollyFrontier Specialty Products Process


(PDF, 2 MB)