Fly Control Auckland
There is no doubt that when we think of insects in relation to everyday public health, flies always come first to mind. Despite this there are many misconceptions relating to “the fly problem”.
The term “flies” is not precise. Common speech it usually means insects which are either houseflies or blowflies or others sufficiently similar to these for us to be uncertain about their identity. In public health a similar meaning applies but with an added association with human beings or their dwellings.
However, since much remains to be learned about the behavior of individual species, “flies” will still be talked about collectively in the following discussion. As far as possible those facets of behavior which are individual to species will be revealed. Fly control. Auckland Steam n Dry guarantee there flies control service treatments. Kill Fly’s North Shore, East, West South Auckland City,
Flies and Disease
Structurally the individual fly is well formed to carry bacteria and other pathogens. lts feet are hairy, as is the expanded tip of the mouth parts, which, when feeding, spreads over a considerable area other food material relative to the size of the fly. External contamination of both feet and mouth parts occurs, but in addition the fly swallows microorganisms many of which survive or even multiply in the insect’s gut. While feeding, flies frequently defecate and vomit (“fly spots”) and these are additional ways of contaminating food.
In its habits “the fly” is well adapted to disease transmission and this will be more apparent in the following paragraphs. From our point of view, “flies” show a complete lack of discrimination in the materials they visit, the extremes which commonly interest them being faces and foodstuffs.
Since the basic element in disease transmission by flies is mechanical transfer, the responsible pathogenic organisms must be accessible in media to which flies are attracted for feeding or breeding. Without doubt the medium which satisfies this requirement to the greatest degree is human faecal matter; sputum and suppurating discharges could be of minor significance.
That flies can become contaminated with bacteria and other disease-causing organisms has been adequately demonstrated in various ways. The correlation of high incidence of enteric disease with high fly densities has been validated by marked decreases in disease following effective fly control when this has been possible under controlled conditions such as military encampments.
The housefly is a camp follower in human communities, it, and the common domestic mosquito, are the two flying insects which have best adapted themselves to life with human beings. Both revel in filth. The lesser housefly, very similar superficially to the housefly itself, often enters houses but spends most of its time interminably circling the room ,not all blowflies choose to enter houses frequently; the brown blowflies are the only ones which do so with predictable regularity.
The significance of the housefly in the transmission of disease relates to both its habits and its structure. The housefly is one of the very few flies which is comfortable inside houses. lt behaves with all the familiarity of an old inhabitant, busily investigating anything that it finds attractive during the daytime and resting on walls and ceilings overnight.
In this situation, any measures taken to reduce fly abundance immediately reduce the amount of contact of flies with human beings and their foodstuffs.
Houseflies and blowflies increase or decrease according to seasonal and climatic factors together with the availability of breeding materials. The housefly in New South Wales is a summer early autumn fly as are some blowflies, but others tend to have spring and autumn peaks.
The populations of houseflies in Auckland vary considerably between areas with fly susceptible tendencies and those without. From one year to other gross variations appear to be determined by climatic factors. Broadly, wet seasons tend to depress fly numbers, dry seasons to increase them, but prolonged drought also inhibits their development. The precise effects of climatic vagaries are not adequately understood.
Over the winter a few adult flies take shelter in warm secluded places and a few maggots probably go through a prolonged larval development to emerge as adult flies with the onset of warm weather.
However, the problem is not measured by a 50-year-old yardstick and people inevitably adjust the acceptable minimum of fly activity to present time, Although we no longer use gauze meat covers and beaded milk jug covers on our dining tables this does not mean that the present generation is unaware of a fly problem.
Dispersal of fly’s
Around a very limited breeding place (a single manure heap) houseflies may be troublesome over a radius of sixty metres or so, if their needs can be satisfied in so small a compass, large breeding sites such as a garbage disposal area can supply flies to distances of at least 400 metres.
In the case of complaints it is always worth attempting to trace fly densities to their maximum points, This does sometimes reveal the possible source area, but this may be obscured because exceptionally attractive places tend to cause adults to accumulate.
In the case of the bush fly long distance wind- borne migrations do certainly occur.
Flies Life history
The female housefly deposits eggs in batches, usually in excess of a hundred, and during her lifetime may produce more than 2,000 eggs. Hatching takes place in eight to twelve hours and the larva feeds and develops for several days and finally changes to a pupa from which the adult emerges in three to six days.
The bushfly can breed rather faster than the housefly; blowflies in the main take a little longer to complete their development.
Fly Breeding places
The decomposing vegetable wastes which are particularly suitable for housefly breeding may be found in horse manure, in pig, cow and poultry manure and in straw or even sawdust contaminated by animal wastes.
Any of these materials produce many flies. A group of people may be worried by the flies bred from a few cubic feet of stacked animal manure. Other potential breeding places are so various that examples of minor ones are to be found almost anywhere.
If potential breeding sites are kept under observation most will be found to be free of breeding for long periods of time and then suddenly become active. The litter in poultry sheds is often without any obvious housefly breeding for the greater part of the year even though the lesser housefly may be commonly observed.
House fly control
The interiors of houses can be protected from flies by screening of doors and windows. If a chimney is present this must also be screened during the summer months. Screening protects people and food from most contacts with flies but has no effect on the fly population.
If there is to be an effective community approach to the fly problem this must start in the kitchen. Food scraps should always be wrapped in paper. Drained first if wet, and placed in garbage tins with close shutting lids. Unfortunately, the effectiveness of the lid is often spoiled by bad handling of the can in the process of emptying into the garbage truck.
The householder should keep the garbage can clean (easy when wastes are wrapped), make sure that the bottom is sound, preferably stand it on concrete, and at such a distance from the backdoor that any flies attracted to it will not enter the house when the door is open. Food tins are articularly attractive to flies and should be washed before placing in the can. In relation to the fly life history the desirable frequency of garbage collection is twice weekly.
Flies Controlled by insecticides
Compared with 40 years ago, there has been a reduction of the fly problems in suburban and industrial areas and some, but not all, country townships. ln the early part of this century fly swats (or alternatives) and sticky fly papers were in very common use. Foods were kept without refrigeration under gauze domes or in gauze safes. Most of these practices have virtually disappeared and insecticidal fly control has played no part in this.
Some situations do require the use of insecticides, which reinforce basic sanitary practices. Without the latter, insecticides do not make any obvious impression on the fly population unless they are very sweeping, as with aerial applications. There is little prospect that aerial application of insecticides will become a standard practice in towns.
Induction in fly control
(a) Pest Control Auckland primary objective in fly control is linked with the diseases they can carry. Pest Control Auckland secondary objective is freedom from annoyance. Linked with both is a feeling that flies are not aesthetically acceptable.
(b) lt is often forgotten that the diseases for which flies may be responsible are transmitted by other means with equal facility. lt is not good enough to control flies if we neglect persona hygiene.
(c) Basic to both disease control and fly control is community hygiene and sanitation.
(d) In urban areas the abundance of flies is taken as an index of the general sanitary status of the community. ln country areas this remains true for houseflies but blowfly abundance is not necessarily linked with sanitation.
Fly Species which commonly enter houses
When the external environment is unsuitable (very high temperatures) more species will enter houses than are prone to do so with any consistency under normal conditions.
The housefly. This species breeds in decaying or fermenting organic material, preferably rather moist. Matter directly or indirectly of vegetable origin is preferred – decomposing vegetable material, garbage, grass clippings, horse, pig, poultry and other animal manures. Potential breeding media may be free of maggots for long periods then suddenly become highly active.
lt is the fly most frequently and constantly found inside buildings where in it is perfectly at home and freely visits foodstuffs and wastes.
High densities of these usually indicate a nearby major breeding source within a few hundred feet or sometimes up to a quarter of a mile away. The present practice of dealing with these situations only when they are the subject of complaint is not helpful to the overall problem.
Species not commonly entering houses
The European green blowfly. This species is an introduced one which has a very strong relationship to garbage. It is the dominant species emerging from garbage dumps where it is capable of maintaining very high population densities. If this were the only species breeding in garbage there would be no problem as it does not appear to be important as a house visitor. On the other hand it serves as an indicator of the standard of disposal practice in garbage dumps more than any other species. lt may also be useful as an indicator of the standard of backyard hygiene in suburban areas.
The use of this species as an indicator, lies in the fact that it appears to be far less sensitive to adverse climatic conditions and is present throughout the year in
particularly suitable situations. Furthermore it does not move far from the area in which it breeds.
Fly control price list
Micro pest provides the following fly pest control service with an approximate price. Please don’t hesitate to ring because we do have specials from time to time and we are flexible.