Herald t Lantern 9 September ai

18

HARBOR FWMTURE OUTLET

Mosquitos —

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(From Page 1) areas are 6n state-owned lands. Approximately 24 percent of the state’s acreage is in-Cape May Codhty. ' ‘Before the project was started, the last work on the Tuckahoe*Marsh was done in the 1930s by the Civilian Conservation Corps. Many of these ditches became clogged over the years, and most are abandoned as the non-mosquito breeding zone expands. Only thosef ditches in salt marsh cordgrasS that are breeding mosquitoes are maintairted. THERE ARE THREE basic techniques to'marsh water management, as outlined

by Hansen:

Using tidal water ditches whenever practical, each breeding depression is ditched to a tidal source, either a natural tidal creek of another tidal mosquito ditch, to insure daily tidal inundation of the depression and access•for-fiih to eat the

OUTLET

Exit 6 Parkway North Wildwood Blvd. Burleigh. N.J. 465-3208 • 465-7677

FREE SEME BIT IELIVERT

nosquUo larvae.

Whtfe I

breeding depressions occur r “ laik

a pool capable of sustaining a population of larvivorous TlSh throughout- a season,

are dug from the pool to the maintain water table in the

radial ditches a depression t<in pool. ^

Where ahy of This takes place, all potential mosquit^breqding depressions are staked in a section of th|e marsh, with a

of thb r

mosquito control worken and a wildlife

• • —in tne i

biologist'cooperating in life work. The county commission has other such

projects on the Wheeler Hay Farm in Goshen and Dennis Creek Marsh to Bidwell’s, which is still in progress. Work on the Tuckahoe Marsh is a little over half

completed.

Burlington, Ocean, and Atlantic Counties are also doing op«en marsh water management. Most of the original research was completed in New Jersey by Fred Ferrigno, State Fish and Game division biologist, and member of the Cape

May Mosquito Commission.

USE OF THE MANAGEMENT techni* que has, happily, meant less reliance on pesticides, consequently less environmental upset. The commission's Integrated Pest Management program combines water management, pesticide usage, biological control (fish and, natural predators), growth regulators, and work with bacteria toxic to mosquito larvae Open marsh water management definitely and significantly reduces the use of pesticides bn the open salt marsh”, says-Hahsen. “It is an environmentally acceptable technique that has the support of the New Jersey Department of Environmental Protection and the Corps of Engineers. The initial codt is high but the long term cost is less expensive, in the long run.” . ... The first area completed by the commission in 1989, the Seavilie project, has not needed pesticide treatment since, Hansen points out. Another project on the Delaware Bay shore eliminated 1,000 acres of salt hay breeding and has not needed treating since 1975. THE COMMISSION workers don’t spend all their time in the salt marshes, howevdr. The upland water management unit uses machines, muscles, shovels and axes to

keqf) ditches open

ic pesticide use is still necessary.

Larviclling is carried out by helicopter on

' ' “ ndw J

c

both Salt marsh breeding areas and wooded upland sites, using a granular pesticide. THE CATCH BASINS in the county are also treated. Of the.20,of)0 catch basins, about 3,000 contain larVae, according to surveys. *Tidal basins do not bfeed mos-

quitoes.

The commission does no ground adulticiding, but Coordinates the programs for the municipalities and the 40-plus campgrounds in thb county. It also calibrates and checks the spray machines used. A marsh larval dipping survey is carried out weekly from April i to Nov. 1 each

Barrier Islands

year. A light trap program in effect since

(From Page 1)

winds and tides, these geographical features are always moving. “People are very territorial; they buy property in the dunbs and then get upset when in a year or two it is not there,” Dr. Halsey points oiit. Dr. Halsey spent the last year on Long Beach Island studying the way sand is redistributed. Her project was funded by a Sea Grant. She has found that barrier islands alwayk liiove inland and that most of the sand ends up at the northern end of the island. Tmais caused by the ebb tidal currents and ihfcve action. Dr. Halsey explained recently how in the past 25,000 years barrier islands haVe moved 100 miles closer to the mainland. A projected estimate shows that in the next 25,000 years the barrier islands will be off the coast of Philadelphia. She attributed this to the melting of the glacial ice caps

1960 show that there has been a steady yearly decline in the countywide mosquito populations, according to Hansen. THE CHIEF TARGET of all this activity is Aedans Sollicitans, most aggressive and migratory of the five species of salt marsh mosquitoes found in the area. This stinging menace can be carried by the wind up to 15

or more miles a day.

Old A9Gans is more than a nuisance and wqR raiser, though. The pesky skeeter transmits' dog heartworm and Eastern Equine Encephalitis, a sometimes deadly disease which afflicts horses and mules but also may be transmitted to man. Some of Aednas’ 167 related species, such as the Anopheles, which carries malaria, are still more dangerous. None, including culens pipiens, which breeds in catch basins, old tin cans, or almost anything which will, hold water long enough for the breeding cycle, are good

company.

If il%

and the shifting of the continental plates. A

lyonafUrt

steady rise in sea level, especially < surface like the Jersey coast, means miles of land will be submerged in water. "BARRIER ISLANDS will move landward and upward in space and time. This problem is not unique to the coast of New Jersey. All these types of land formations move in the same manner," Dr. Halsey said. ^ "We must get people to love dunes. A couple of years ago nobody cared about the marsh land. Now it is sacred. We must do the same for the dunes. Dunes are the cheapest and most effective form of flowL and storm protection that we have." Dr Halsey says that the DEP knows 1 to build dunes. Sand fencing used togel with Christmas trees catch sand that blown by the wind. The fencing should be placed at riaht angles to the southeast. After a subsB^tial amount of sand has collected, beach grass should be planted and

nurtured.

The department of Coastal Resources recently established a plan they call the Shore Protection master Plan. This plan calls for dune growth and nourishment along with the dredging of off coast sand to be returned to the beach. There are, hovfever, two problems w^th the plan as seen by Dr. Halsey. First, she isn’t sure if therfc will be competitive bidding on the dredging projects. Secondly, she doesn’t know if there will be enough sand offshore to pump back on the beach. Dr. Halsey also cautioned that we are long overdue for a big storm. "When we get one everybody will think I ordered it. We’ve been lucky in the past. Qg^ugust 25, of this year, there was^a big northeasterly storm but it blew off the coast quickly," she said.

any comfort, even x Alaska is

plagued by some of the nastiest mosquitoes in North America during its brief

summer. v

And the next time Aedans or one of its friends and relations seeks you out for a small blood donation, cling to the thought that her numbers are growing fewer. Then

reach for the after-bite lotion.

Five Point Club-

i From Page 1)

method of raising money. SINCE THEN. BY sponsoring public card parties, luncheons, covered dish dinners, auction sales, bus trips and dinner theater parties in the Summer months only — the club ytoti contributed a total of $9,400 to organizations such as the Heart Fund, Polio Drive, Avalon PTA Milk fund and field trips, American Cancer Society, American Red Cross, March of Dimes, Crest Haven, Avalon Methodist Church, Avalon Fire Department, Helmbold Education Center. Burdette Tomlin, Shore Memorial and Surf (later Mercy) Hospitals, Lions Club Helen Diller Fund, Avalon Public Library and tfie Avalon Recreation Department for playground equipment and teen dances. Election of new officers from 1982-1963 was held at the conclusion of the luncheon with Miss Peg Ingram, president; Mrs. Mary Bruce, vice president; Mrs. Margaret Hogan, secretory; Mrs Ebna Schaffer, corresponding secretary and Mrs. Irena Gosser, treasurer being choaen. The next club activity will be "West Side Story" at the 76 HOuse Oct. 23. Reservations are being token at 967-3192 ot 967-4241. t- a<i*«i11»vt•