TITLE OF THE INVENTION:

UZI FLY TRAPPING DEVICE AND INSTALLATION METHOD

FIELD OF INVENTION

The present invention relates to trapping the Uzi flies More particularly, the present invention discloses Uzi fly trapping device prior to their entering the silk worm rearing room and installation method.

BACKGROUND OF INVENTION

Sericulture, or Silk farming, is the rearing of Silkworms for the production of raw Silk. Bombyx mori, is the most widely used among commercial species of Silkworms.

During Silkworm rearing, sericulture farmers face a lot of challenges such as combating pests and resultant diseases of Silkworms which in turn affects the productivity of Silk worm and quality of silk produced. One of the major and serious problems encountered by the farmers are the insect pests. Among the insect pests that attack Silkworm, the most formidable one is a tachinid fly, popularly known as Uzi fly (Exorista bombycis), which is an endo-parasitoid of the delicate Silkworm. The adult Uzi flies are larger than house flies and have four prominent longitudinal lines on the thorax and horizontal bands on the abdomen.

Conventionally, there are some methods available to control the Uzi fly and avoid the damages caused by it. One such method available is usage of organic manure, cow dung, used fertile soil etc to reduce Uzi fly menace. However, these techniques does not give effective results and is not capable of controlling the Uzi fly menace to the required extent.

Also, there are some chemicals available in the state of the art to prevent damages to Silk worms from Uzi flies. A freshly prepared 2% bleaching powder solution is usually sprayed on the Silkworm larvae every 48 hrs in cases of severe infestation by the Uzi flies. This kills the eggs of Uzi fly before it hatches. Further, spraying of bleaching powder solution may also damage quality of the Silk worm cocoons. Bleaching powder also causes allergic reactions and rashes when it comes in contact with the skin of the personnel disinfecting the silk worm rearing room. This method also leaves an unpleasant odour, which may further cause irritation reactions.

Another method of Chemical control of Uzi fly has also been tried and tested by using (dusting) of diflubenzuron at 2.5 per cent, the diluent used being levigated china clay. However, Maggots/pupae collected from the cocoon market when treated with this material (covered with a dust layer 2.54 cm thick) give rise to sterile adults which mate but are not able to produce off spring. While treating, maggots/ pupae should be spread in a single layer on a shallow tray with 200 maggots/ pupae per sq.ft. Release program of such files which emerge from treated maggots/ pupae could have a good impact on the reduction of the Uzi fly population. The personnel disinfecting the silkworm rearing room needs to exercise sufficient care and precaution to achieve the desired result since the maggots/pupae needs to spread in single layer. This makes this method cumbersome and time consuming.

Since infected Silkworm cocoons cannot be transported because the Uzi fly infection will spread even to areas where the Uzi fly is not present Therefore, as precaution, Silkworm cocoons infected with Uzi fly maggots should be disposed by placing the cocoons in either hot water or in containers of formaldehyde. There is a problem that above mentioned method is cumbersome and non user friendly.

There is a problem that, an effective method of protecting silk worm larvae from infection of Uzi fly has to be determined and thereby preventing further spreading of the Uzi fly infection.

There is also the problem that usage of chemicals to control the Uzi flies harms the quality of Silk worms.

There is further the problem, that usage of chemicals to control the Uzi flies requires additional man hours and skilled labour.

There is additional problem that, conventional mechanisms are not able to effectively prevent the entry of the Uzi fly in Silkworm rearing rooms.

Further, there is a problem that farmers incur heavy losses in their Silk production due to silk worm larvae getting infested from Uzi fly maggots.

Also, still further, the problem of usage of chemicals to control the Uzi flies may dampen Silk production.

It will also be amply clear to a person skilled in the art that, in view of the above-mentioned problems, there is a need in the art for a device, which enables protecting Silkworm larvae from Uzi fly in a cost effective manner.

There is a need in the art for a device, which enables trapping the Uzi fly prior to entering into the silk worm rearing room with almost complete efficiency.

There is a need in the art for a device, which enables preventing entry of Uzi fly in Silkworm rearing rooms.

There is a need in the art for a device, which is easy to operate for trapping the Uzi fly prior to entering into the silk worm rearing room.

There is a need in the art for a device, which can be constructed easily and installed by an untrained person easily.

Also, there is a need in the art for a device, to control Uzi flies from infesting Silkworm larvae without using chemicals causing harmful reactions.

Still further, there is a need in the art for a device, to control Uzi flies from infesting Silkworms in a simple manner without consuming additional man hours and requiring skilled labour.

Further, there is a need in the art for a device, which enables to protect Silkworm from Uzi fly infection by preventing entry of Uzi flies into the silkworm rearing room.

OBJECTIVES OF THE INVENTION

The present invention is embodied by the Uzi fly trap in a manner, so as to fulfill the above-mentioned need(s) in the art. In addition, the present invention also, has further objective(s) as enumerated and described in the present disclosure. A person skilled in the art, is very well aware that, the enumerated objective(s) of the device, as embodied in the present invention, are merely illustrative of the scope and purview of the present invention, as described in the present disclosure. However, such an illustration may not be construed to restrict the present invention in any manner. It will be very clear to a person skilled in the art that, any additional variation, functional equivalent and/or any structural alternative to the present invention may also be understood to be within the scope and purview of the present invention, as described in the present disclosure. The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.

In view of the above-mentioned need in the art, it will be amply clear to a person skilled in the art that, an objective of the present invention is, to provide a device which enables trapping of Uzi flies from entering the silk worm rearing room in a cost effective manner.

Another objective of the present invention is, to provide a device , which enables to prevent the Uzi flies from entering the silk worm rearing room in a almost completely 100 % efficient manner via a trap which is easy to construct, and simple to operate.

Further another objective of the present invention, is to provide a device, which can be installed and maintained by an untrained person easily.

Further another objective of the present invention, is to provide a device, to control Uzi flies from infesting Silkworm larvae without using chemicals causing harmful reactions.

Further another objective of the present invention, is to provide a device, to control Uzi flies from infesting Silkworms in a simple manner without consuming additional man hours and requiring skilled labour.

Yet another objective of the present invention is, to provide a device, which enables to prevent entry of Uzi fly and thereby infection of Uzi fly in Silkworm rearing rooms.

Further, another objective of the present invention is, to provide a device which enables to protect Silkworm larvaefrom being infected by Uzi flies.

SUMMARY OF THE INVENTION

The present invention as embodied by an Uzi Fly Trap herein, and elsewhere in the disclosure, succinctly fulfills the abovementioned objective(s) in the art. The objectives of the present invention are, as broadly enumerated in the above-mentioned paragraph of the present disclosure. However, it would be perfectly clear to a person skilled in the art that, inasmuch as the objectives have been enumerated in the above-mentioned paragraph, such objectives are only indicative of the scope and general coverage of the present invention.

This statement of enumerated objectives should be considered as merely indicative, and is no way restrictive of the scope and ambit of the present invention in its entirety. Not only the enumerated objectives should be considered as indicative of the scope and ambit of the present invention, in addition, any combination, variation, functional equivalent and/or any structural alternative should also be construed to be within the broad scope of the present invention, even though, such a scope of the present invention has not been explicitly stated herein and elsewhere in the present disclosure. . The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.

The present invention discloses a Uzi fly trap for preventing Uzi flies from entering into silk worm rearing rooms.

Net (N) inclusive of net material made of Nylon, is secured to the Window (W) provided in Silk worm rearing room (R). The Uzi flytrap (F) of the present invention consists of a mesh (11). Mesh (11) inclusive of Nylon Mosquito mesh and any other material of similar functionality. One end (18) of mesh (11) is attached to of the net (N) surrounding the two - three holes are made in the net (N) for the mated female Uzi flies to enter the Uzi fly trap (F). The Uzi flies are attracted by the smell of the Silk worms present in the rearing room (R) which permeates into the Uzi fly trap (F) by an arrangement. To the inside of Nylon mesh (11), atleast two collars (15) made of plastic material inclusive of Poly Vinyl Chloride (PVC) are attached at intermediate distance. At its other end, the mesh(11) is tied with a cotton thread (16) to a hollow pipe (14) made of material inclusive of metal. At the end of this pipe (14), a fine Nylon mesh (17) is fixed and inserted into the plastic bottle (12). The bottle used could be any ordinary disposable plastic one (soft-drink or any of the mineral water bottle) available in the market. After insertion of the pipe into the plastic bottle (12), a bottle sealing component (13) inclusive of cork with a hole whose dimensions match that of the pipe (14) is slid over the pipe, into the plastic bottle to secure the exit of the bottle. This is done so that the Uzi flies entering the mesh (11) are restricted in their entry via the pipe into the bottle. The arrangement for attracting the Uzi flies comprises small holes made in the other end of the plastic bottle (12) to permeate the smell of the Silk worms present in the Silk worm rearing room (R). Uzi flies are attracted to this permeated smell and enter through the holes made in the net (N) to the Uzi fly trap (F). But they get trapped in the mesh (17) inside the bottle. This flytrap is economical compared to prior methods.

BRIEF DESCRIPTION OF DRAWINGS

The description of the present invention in conjunction with the drawings, illustrating the present invention and in application(s) illustrative of the present invention, explain in detail, the working of the present invention. It will be amply clear to a person skilled in the art, that the application as disclosed in the drawings are merely illustrative of the scope of the present invention and not exhaustive of the scope of the present invention, in its entirety.

Figure 1 illustrates the Silk worm rearing arrangement installed in the Silk worm rearing room.
Figure 2 depicts the Exorista bombycis commonly termed Uzi fly, which is trapped by the Uzi fly
trap as deployed in the present invention.
Figure 3 illustrates the Silk worm rearing room installed with the Uzi fly trap, as deployed in the
present invention.
Figure 4 illustrates the Uzi fly trap, in accordance with the present invention, in detail.

DETAILED DESCRIPTION OF DRAWINGS:

A person skilled in the art is aware that, the Silk moth lays eggs and when the eggs hatch, the Caterpillars are fed with Mulberry leaves. When the Silkworms are about 23 days old, they are ready to spin a Silk cocoon. The Silk is produced in two glands in the Silkworm's head. On a average around 5500 Silkworms are required to produce sufficient amount of Silk.

Bombyx mori is the most commonly used commercial species of Silkworms. For quality commercial production of Silk, Silk worms are reared in a Silk worm rearing room.

Preconditioning is necessary for a place to qualify as a Silk worm rearing area. A separate house acting as a Silk worm rearing area is ideal for rearing of Silkworm.
The rooms within the Silk worm rearing area should have sufficient number of windows to permit cross ventilation. Further, Silk worm rearing rooms have the arrangement of Silk worm rearing appliances which are required to be maintained in essential environmental conditions for Silk worm rearing. Such conditions generally include an equable temperature and humidity along with good ventilation. For example, optimum values such as optimum temperature of 26-28° c and RH of 60-70% is required for the growth of Silkworm.

Rearing appliances include rearing tables, in the Silk worm caterpillar and mulberry leaves as nutrition, can be placed in the shelves of the table by means of trays. Silk worms provided on such a tray is shown in Figure 1.

Great amount of care is taken to maintain the environmental conditions of the Silk worm rearing room by undertaking measures such as disinfecting the rearing room, washing and disinfecting the rearing appliances thoroughly with chlorine dioxide, spraying Chlorine dioxide on appliances, walls, roof and floor uniformly to destroy the disease causing organisms in advance before the commencement of rearing. There is a requirement to keep the doors and windows open at least for 24 hours before commencement of rearing to avoid traces of disinfectants. It is observed that disease generating organisms enter the room through the doors and windows. Even though several pests affect the Silk worm larvae, one of the major and serious problems encountered by the farmers is the Uzi fly (Exorista bombycis), which is an endo-parasitoid of the delicate Silkworm.

Person skilled in the art will generally understand that endo-parasitoid refers to pests which develop inside their hosts, in this case the Silk worm larvae. Usually, a single Uzi fly maggot develops inside an individual Silk worm host. Many maggots almost totally consume the host Silkworm before they bore out of the host to pupate and complete the generation..

Figure 2 shows the structure of Uzi fly in order to understand the manner in which the Uzi fly attacks the Silk worm larvae.

Generally, Uzi fly enter Silkworm rearing rooms through windows and ventilations of the Silkworm rearing rooms. The adult Uzi flies are larger than house flies and have four prominent longitudinal lines on the thorax and horizontal bands on the abdomen.

Adults are blackish gray in colour. Male is loner in body length (about 12mm) than female (about 10mm) The Head is triangular in shape. On the dorsal side of the thorax, there are four longitudinal black bands. The abdomen is conical. Of the abdominal segments, the first one is black and the rest grayish-yellow. A single mated female Uzi fly lays about 300-1,000 eggs over a period of about 9-25 days depending upon the seasons. The fertilized eggs are laid throughout the life span of the female.. The young maggot hatches out of the eggs shell through the operculum which generally faces the Silkworm body. If eggs are deposited on the early Silkworm larva, the Silk- worm dies before pupation when parasitic maggots wriggle out of the larva. The newly hatched maggot directly penetrates into the Silkworm body. Maggots have eleven body segments. The mature maggots escape from the host body by piercing the integument by its prothoracic hoots in about 5-8 days depending upon season and number of maggots developing per host larva. They feed on various tissues of the Silk worm body and the host Silk worm larva dies by the time the maggots are mature to escape out from the host body. If the eggs are deposited on a late larva, the larva may spin a normal cocoon, but this cocoon is rendered useless for both reeling and reproductive purposes. The destruction of Silk worm larva causes 15-20% crop loss annually. Therefore it is necessary to prevent the entry of Uzi fly into the Silk worm rearing room. In order to prevent the entry of the Uzi fly, an Uzi fly trap (F) is installed in the Silk worm rearing room (R). The manner of installation is shown in Figure 3.

In order to ensure essential environmental conditions for Silk worm rearing, windows (W) and ventilators are provided in Silk worm rearing room (R). Window/ventilator(W) is secured with net (N) made of a material inclusive of Nylon. Two - Three holes are made in the net (N) for the mated female Uzi flies to enter. The Uzi flies are attracted by the smell of the Silk worms present in the rearing room (R) which permeates into the Uzi fly trap by an arrangement.

The Uzi flytrap (F) consists of a mesh (11) inclusive of Nylon Mosquito mesh whose one end (18) is attached to of the Nylon net of Window (W). To the inside of this Nylon mesh (11), atleast two collars (15) made of plastic material inclusive of Poly Vinyl Chloride (PVC) are attached at intermediate distance. At its other end, the mesh(11) is tied with a cotton thread (16) to a hollow pipe (14) made of material inclusive of metal. At the end of this pipe (14), a fine Nylon mesh (17) is fixed and inserted into the plastic bottle (12). The bottle used could be any ordinary disposable plastic one (soft-drink or any of the mineral water bottle) available in the market. After insertion of the pipe into the plastic bottle (12), a bottle sealing component (13) inclusive of cork with a hole whose dimensions match that of the pipe (14) is slid over the pipe, into the plastic bottle to secure the exit of the bottle. This is done so that the Uzi flies entering the mesh (11) are restricted in their entry via the pipe into the bottle. The arrangement for attracting the Uzi flies comprises small holes made in the other end of the plastic bottle (12) to permeate the smell of the Silk worms present in the Silk worm rearing room (R). Uzi flies are attracted to this permeated smell and enter through the holes made in the net (N) to the Uzi fly trap (F). But they get trapped in the mesh (17) inside the bottle. The above mentioned detail construction of Uzi fly trap (F) is depicted in Figure 4.
The advantages arising out of the illustrated application in conjunction with the enclosed drawings are merely indicative and are not to be construed to be restricting the scope of the present invention in any manner.

Conventionally, chemicals are used to control the Uzi flies harms the quality of Silk worms. Some chemicals are available in the state of the art to prevent damages to Silk worms from Uzi flies. For example freshly prepared bleaching powder solution is usually sprayed on the Silkworm larvae which kills the eggs of Uzi fly before it hatches. But this spraying of bleaching powder solution may also damage quality of the Silk worm cocoons. Bleaching powder also causes allergic reactions and rashes when it comes in contact with the skin and general health of the personnel maintaining the silk worm rearing room. The present invention deployed as the Uzi fly trap, prevents harm to silk worm thereby maintaining the quality of Silk produced. Also, the personnel maintaining the silk worm rearing room are not adversely affected, since allergic reactions by chemical usage is not caused. Further application of chemicals requires skilled labour as well as consumes man hours and requires continuous presence of the personnel in the silk worm rearing room. Installation of the Uzi fly trap prevents such requirements and therefore additional man hours and labour are not required.

Conventional mechanisms are not able to effectively prevent the entry of the Uzi fly in Silkworm rearing rooms and causes 15 to 20 % crop loss annually. The present invention prevents the entry of Uzi flies in Silk worm rearing rooms in a more efficient manner. Since the present invention prevents the entry of Uzi flies in silk worm rearing room, the above mentioned heavy losses in conventional mechanism that farmers incur due to Uzi fly infection of silk worms is prevented thereby increasing the income of farmers and the quality of silk.

I claim:

1. An Uzi fly trapping device installed on net (N) with which window (W) of rearing room (R) is secured, said rearing room (R) used for rearing silk worms (S) .said device comprising:

a. a mesh (11), said mesh (11) having two ends, whose one end (18) is attached to of the net (N) surrounding atleast 3 holes provided in net (N);

b. atleast two collars (15) of plastic material being attached at intermediate distance to inside of Nylon mosquito mesh (11);

c. Other end of mesh (11) tied with cotton thread (16) to a hollow pipe (14) having two ends;

d. a fine Nylon mesh (17) is fixed at one end of pipe (14), said other end of pipe being inserted into plastic bottle (12), said bottle having a base and an exit;

e. a bottle sealing component (13) with a hole whose dimensions match that of the pipe
(14) is slid over the pipe, into the plastic bottle (12) to secure the exit of the bottle (12);

f. small holes made in the base of the plastic bottle (12) to permeate the smell of the Silk worms (S) from rearing room (R)

2. The device as claimed in claim 1, wherein mesh (11) is inclusive of Nylon Mosquito mesh.

3. The device as claimed in claim 1, wherein plastic material for collars(15) is inclusive of Poly Vinyl Chloride (PVC).

4. The device as claimed in claim 1, wherein plastic bottle (12) is inclusive of soft-drink or any of the mineral water bottle

5. The device as claimed in claim 1, wherein bottle sealing component (13) is inclusive of cork.

6. The device as claimed in claim 1, wherein pipe (14) is made of metal.

7. A method of installing Uzi fly trapping device, device installed on net (N) with which window
(W) of rearing room (R) is secured, said rearing room (R) used for rearing silk worms (S),

said method comprising the steps of:

a. Attaching mesh (11), having two ends, said mesh (11) attached at its one end (18) to net (N) such that mesh (11) surrounds atleast 3 holes provided in net (N) for enabling entry of Uzi flies.

b. Attaching atleast two collars (15) of plastic material at intermediate distance on the inside of mesh (11).

c. Tying mesh (11) at its other end with a cotton thread (16) to a pipe (14), said pipe having two ends.

d. Fixing fine mesh (17) at one end of pipe (14)

e. Inserting pipe (14) into the bottle (12) such that end of pipe (14) with mesh (17) is within the bottle.

f. securing the exit of bottle (12) by sliding a bottle sealing component (13) over the pipe (14), though a hole in the component (13), said hole having dimensions matching pipe (14)

g. trapping Uzi flies by means of small holes provided in base of bottle (12), said holes enabling permeating odour of silk worms (S) present in the silk worm rearing room (R).

8. The method as claimed in claim 7, wherein mesh (11) is inclusive of Nylon Mosquito mesh.

9. The method as claimed in claim 7, wherein plastic bottle (12) is inclusive of soft-drink or any of the mineral water bottle

10. The method as claimed in claim 7, wherein bottle sealing component (13) is inclusive of cork.