Specifications include, but are not limited to: The State of Delaware Department of Natural Resources and Environmental Control (DNREC) seeks professional services to cover all aspects of Helicopter Spraying and Surveillance requirements for the Mosquito Control Section based on one hourly fixed rate. All of the equipment and services required hereunder shall be provided by or performed by the Vendor or under its direct supervision, and all personnel, including subcontractors, engaged in the work shall be fully qualified and shall be authorized under State and local law to perform such services. Contractor should base their cost per flight hour on the basis of overall price per hour for helicopter use, involving mosquito larvae surveillance, larvicide applications, adulticide applications, and aerial photography, all combined into one overall price per hour. To help a bidder better determine the overall price or cost per hour, the following types and representative amounts of helicopter uses, or insecticide treatments are provided below for guidance purposes only, being “typical” of Mosquito Control’s annual use or treatment patterns: 1. An average of 98 hours per year for larvicide applications, for both woodland pool and salt marsh treatments (to treat about 8,000 acres per year at a rate of about 80 acres per hour). 2. About 2 hours per year for mosquito larvae surveillance or aerial photography work (i.e. helicopter use for non-spraying purposes). Mosquito surveillance and control program operations regularly take place from mid-March through October with a contractor needing all aircraft ready for calibration and possible use by February 21 of each year. The frequency of mosquito surveillance and control operational work with the use of a helicopter is weather dependent. For example, spraying to control the larvae of woodland mosquito species takes place from midMarch to mid-April. Sporadic multiple or spot spraying (to control salt marsh mosquito larvae) and larval surveillance operation events involving helicopter use occur from mid-April through October. Adulticiding, spraying to control adult mosquitoes, can occur at any time depending on need.
