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GB2232052A - Device for protection against garden molluscs - Google Patents

Device for protection against garden molluscs Download PDF

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Publication number
GB2232052A
GB2232052A GB9012440A GB9012440A GB2232052A GB 2232052 A GB2232052 A GB 2232052A GB 9012440 A GB9012440 A GB 9012440A GB 9012440 A GB9012440 A GB 9012440A GB 2232052 A GB2232052 A GB 2232052A
Authority
GB
United Kingdom
Prior art keywords
barrier
barrier device
wall
entrant
wall portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9012440A
Other versions
GB9012440D0 (en
GB2232052B (en
Inventor
Keith Williams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB9012440D0 publication Critical patent/GB9012440D0/en
Publication of GB2232052A publication Critical patent/GB2232052A/en
Application granted granted Critical
Publication of GB2232052B publication Critical patent/GB2232052B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00Protection of plants
    • A01G13/10Devices for affording protection against animals, birds or other pests
    • A01G13/105Protective devices against slugs, snails, crawling insects or other climbing animals

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Insects & Arthropods (AREA)
  • Birds (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Environmental Sciences (AREA)
  • Catching Or Destruction (AREA)

Abstract

A barrier device comprises a base plate 1 from which extends an upright wall 2 which returns at the top to define a reentrant wall portion 3 creating a concave downwardly faced internal wall 4. Holes 5 are provided in the base plate 1 for the receipt of fixing pegs which can be used to hold the barrier device in place. The curved top acts as a barrier to slugs. Slug repellant or killing substance may be provided on the device which may form an enclosure or be in the form of a length of flexible material for bending to shape. <IMAGE>

Description

"Device for protection against garden molluscs" This invention relates to the protection of horticultural plants from the damage caused by garden molluscs such as Agriolimax Agestis (field slug), Climax Sowerbyi (keeled slug) and snails.
Many people are now becoming increasingly concerned ahout the contamination of all types of vegetable crops by the use of pesticides, as most garden pesticides are extremely toxic to humans, particularly young children, and also to domestic pets and certain wildlife. Because most pesticides are ineffective after heavy rainfall repeated applications are required. Sunlight also degrades certain pesticides, and some pesticides may damage plant foliage. Food crops once treated must not be picked within ten days following treatment.
Pesticides in pellet form when distributed around plants are easily accessible to children, domestic pets and wildlife, and pellets are often disturbed by pets allowing a path into the planted area where the molluscs soon damage crops and plants.
It is an object of this invention to alleviate the problems described above and to provide a device which will efficiently protect garden crops against the attack of garden molluscs.
Accordingly this invention provides a barrier device for deterring garden molluscs comprising a base portion for mounting the device on or in the ground, and an upright wall whose top is formed to create a re-entrant wall portion to one side facing downwardly.
The re-entrant design makes it virtually impossible for molluscs to traverse from the side of the barrier from which the re-entrant wall portion projects to the other side, since the molluscs cannot readily climb around the inner surface of the re-entrant wall portion.
A mollusc repellent may be carried on the internal surface of the re-entrant wall portion. The mollusc repellent or killing substance may, for example, be aluminium sulphide (which is non-toxic), or metaldehyde, or any other commonly available substance developed to deter molluscs. A further possibility is copper in the form of a strip or a line of particles or powder glued to the wall. The copper will oxidise and in the oxidised form acts as a substantial mollusc irritant.
The substance could readily be carried by a strip of material adhered to the wall surface.
It is preferred that the re-entrant portion should be curved to define a concave downwardly facing wall portion. If desired, however, the re-entrant portion could be defined by a wall section angled away from the upright wall. Furthermore the re-entrant portion could be a section to be mounted on a wall portion formed, for example, from treated plywood.
The base portion may comprise individual base plate tabs extending at right angles to the upright wall.
Alternatively, the base portion could be a plate extending at right angles to the upright wall. A perforated sleeve incorporating a mollusc repellent or killing substance in the solid form may advantageously be secured to the free longitudinal edge of such a base plate. Then when the device is buried in the ground any slugs attempting to burrow underneath the barrier will come into contact with the mollusc deterrent substance.
Another possibility is for a barrier sheet to be secured to the botton edge of the device. This sheet would be buried vertically in the ground to stop the passage of burrowing slugs, and could be formed from fibreglass.
The or each base plate could readily incorporate holes for the receipt of fixing pegs, which would be driven into the ground.
As a modification, the barrier device could be so formed that the upright wall carries a longitudinally extendina lug on the side opposite to that on which the re-entrant wall portion extends. The slot defined by the lug can then receive a longitudinally extending plate provided with spaced holes for the receipt of animal deterrent lines.
In one arrangement the barrier could be in the form of a length of a flexible material allowing the barrier to assume any desired shape. Alternatively, the barrier could be constructed in the form of an enclosure defining a circle or other desired shape, and with the re-entrant wall portion facing to the outside.
The invention may be performed in various ways and preferred embodiments thereof will now be described with reference to the accompanying drawings, in which: Figure 1 is a perspective view of a barrier device of this invention; Figure 2 illustrates modifications to the barrier device of Figure 1; Figures 3 and 4 illustrate alternative shapes for the cross-section of the barrier device; Figure 5 is a vertical section through one form of enclosed shape barrier device of circular form; Figure 6 is a plan view of an enclosed rectangularly shaped barrier device; and Figure 7 illustrates an alternative method of construction of a barrier device of the type shown in Figure 1.
The barrier device shown in Figure 1 comprises a base plate 1 from which extends an upright wall 2 which returns at the top to define a re-entrant wall portion 3 creating a concave downwardly faced internal wall 4.
I3oles 5 are provided in the base plate 1 for the receipt of fixing pegs which can be used to hold the barrier device in place if it is likely to be unstable if buried in rather loose soil. The barrier device will, of course, extend longitudinally for a substantial distance and ideally will be formed from a flexible plastics material so that it can be curved around an area to be protected to define a total enclosure. Curved wire vertical supports could be provided for a barrier of a very flexible material.
The re-entrant wall portion 3 will face outwardly of the protected area so that when a slug or other mollusc attempts to climb over the barrier, it will have to negotiate the concave wall portion 4 which may prove impossible, particularly if the wall surface is made to be as smooth as possible. It could also be coated with a surfactant (surface tension reducer) which will lower the surface tension and thus make it extremely difficult for the slug to grip the wall surface. Additionally, a strip of material 6 (as shown, for example, in Figure 3) can be secured (such as by a self-adhesive tape) to the internal wall surface of the re-entrant portion. This strip would be impregnated with a mollusc repellant or killing substance.
In the alternative form shown in Figures 3 and 4 the re-entrant portion 3 is formed by an angled wall 7 extending either directly from the top of the upright wall 2 or from a horizontal portion 8.
The modified form of barrier shown in Figure 2 incorporates a longitudinally extending lug 9 which receives plate 10 provided with holes 11. Lines can then be threaded through the holes to cross over the area being protected so as to act as a deterrent to birds and other animals. Additionally, there is shown in Figure 2 a sleeve 12 formed with perforations 13 and adapted to slide over the base plate 1 so as to be held in place there. The sleeve 12 will house a stick of a mollusc repellent or killing substance in solid form within a passageway 14 which will act as an additional barrier, particularly if the base of the barrier is buried underground.
Figure 5 illustrates a completely enclosed form of barrier which is circular in cross-section so as to create a central opening 15 through which the stem of a plant can pass whilst being protected from attack by molluscs. This type of barrier could be made in interlinked segments so as to be able to be posiyioned around a tree or similar large plant.
As a mollusc deterrant material powdered copper could be glued in a continuous strip. The copper will oxidise and act as an irritant to slugs and other molluscs. Instead of powdered copper a strip of copper foil could be used.
A rectangularly shaped enclosed barrier is illustrated in Figure 6. This could be employed, for example, around or within a growing bag filled with compost or the like.
An alternative method of forming a barrier such as that illustrated in Figure 1, is shown in Figure 7.
Here a treated plywood sheet 18 carries a fitting 19 which slides over the top of the sheet 18 and defines a concave wall 4. The fitting 19 could be formed fron metal fibreglass or plastics material. A woven fibreglass sheet 20 is fixed to the bottom edge of the plywood sheet 18 and, when buried in the ground, will act as a barrier to burrowing molluscs.
It will be appreciated that instead of attaching a strip of material 6 (as shown in Figure 3) the mollusc repellent or killing substance could be applied in the form of a paste or gel extruded from a tube directly onto the external wall of the re-entrant portion, or a tape already in position could be replenished chemically from such a tube.

Claims (16)

1. A barrier device for deterring garden molluscs comprising a base portion for mounting the device on or in the ground, and an upright wall whose top is formed to create a re-entrant wall portion to one side facing downwardly.
2. A barrier device according to claim 1, wherein the re-entrant portion is curved to define a concave downardly facing wall portion.
3. A barrier device according to claim 1, wherein the re-entrant portion is defined by a wall section angled away from the upright wall, or is a section mounted on a wall portion formed, for example, from treated plywood.
4. A barrier device according to any one of claims 1 to 3, wherein an internal surface of the re-entrant wall portion is covered with a mollusc repellent or killing substance distributed along the length of the device.
5. k barrier device according to claim 4, wherein said substance is aluminium sulphate or metaldehyde.
6. A barrier device according to claim 4 or claim 5, wherein said substance is carried by a strip of material adhered to the wall surface, for example a copper strip or a line of copper particles or powder.
7. a barrier device according to any one of claims 1 to 6, wherein the base portion is a plate extending at right angles to the upright wall.
8. A barrier device according to claim 7, wherein a perforated sleeve incorporating a mollusc repellant or killing substance in solid form is secured to the freelongitudinal edge of the base plate.
9. A barrier device according to any one of claims 1 to 6, wherein the base portion comprises individual base plate tabs extending at right angles to the upright wall.
10. A barrier device according to any one of claims 7, 8 or 9, wherein the or each base plate incorporates holes for the receipt of fixing pegs.
11. A barrier device according to any one of claims 1 to 6, including a barrier sheet secured to the bottom edge of the device.
12. A barrier device according to any one of claims 1 to 11, wherein the upright wall carries a longitudinally extending lug on the side opposite to that on which the re-entrant wall portion extends.
13. A barrier device according to claim 12, wherein a longitudinally extending plate, with spaced holes for receipt of animal deterrent lines, is received within the slot defined by the lug.
14. A barrier device according to any one of claims 1 to 13, wherein the barrier is in the form of a length of flexible material allowing the barrier to assume any desired shape.
15. A barrier according to any one of claims 1 to 14, wherein the barrier is in the form of an enclosure defining a desired shape, and with the re-entrant wall portion facing to the outside.
16. A barrier substantially as herein described with reference to the accompanying drawings.
GB9012440A 1989-06-03 1990-06-04 Barrier device for protection against garden molluscs. Expired - Lifetime GB2232052B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898912830A GB8912830D0 (en) 1989-06-03 1989-06-03 Device for protection against garden molluscs

Publications (3)

Publication Number Publication Date
GB9012440D0 GB9012440D0 (en) 1990-07-25
GB2232052A true GB2232052A (en) 1990-12-05
GB2232052B GB2232052B (en) 1994-01-26

Family

ID=10657863

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898912830A Pending GB8912830D0 (en) 1989-06-03 1989-06-03 Device for protection against garden molluscs
GB9012440A Expired - Lifetime GB2232052B (en) 1989-06-03 1990-06-04 Barrier device for protection against garden molluscs.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898912830A Pending GB8912830D0 (en) 1989-06-03 1989-06-03 Device for protection against garden molluscs

Country Status (1)

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GB (2) GB8912830D0 (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5379546A (en) * 1992-07-30 1995-01-10 Popp; Richard Bed divider
GB2286759A (en) * 1994-02-18 1995-08-30 Brian Bond Plant protector
GB2291329A (en) * 1994-07-16 1996-01-24 George Edward Jowett A plant protection device
DE19529591A1 (en) * 1995-08-11 1997-02-13 Gerhard Gaus Snail barrier of strip of material with row of bristles along top edge - has bend along top and U=shaped bend holding stuck in bristles
ES2116212A1 (en) * 1996-02-08 1998-07-01 Univ Santiago Compostela Electric barrier or fence for land molluscs (snails, slugs)
GB2320881A (en) * 1997-01-02 1998-07-08 Anthony Clifford Anchors Soil-borne pest deterrent wall
US5857288A (en) * 1996-09-05 1999-01-12 Wiste; Wayne V. Right angle lawn edging and method therefor
GB2335130A (en) * 1998-03-13 1999-09-15 Keith Williams Slug deterrant plant pot
EP1075789A3 (en) * 1999-08-13 2001-05-30 GEDA-Kunststoffe GmbH Protection barrier for surfaces used for gardening
GB2358571A (en) * 2000-01-27 2001-08-01 John Brennan Wyncoll Slug and snail deterrent barrier
FR2821713A1 (en) * 2001-03-08 2002-09-13 Evgenei Stepanovitch Koroid BARRIERS TO PROTECT PLANTS FROM LIMACES
GB2386049A (en) * 2002-02-12 2003-09-10 Simon Chippindale A free standing copper gastropod barrier
US6691454B1 (en) * 2002-08-09 2004-02-17 John E. Conroy System for repelling garden slugs
GB2452487A (en) * 2007-09-04 2009-03-11 Keith Williams Slug barrier
GB2455770A (en) * 2007-12-20 2009-06-24 Steven Rudkin Raised Garden Bed
US7793920B2 (en) 2001-07-05 2010-09-14 Vestergaard Sa Fencing
FR2943503A1 (en) * 2009-03-24 2010-10-01 Dominique Seve Multifunctional device for insulation of culture or breeding zone for e.g. protection of plants to be cultivated within enclosure, has independent chambers receiving repellent adapted to particular culture or breeding pest

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB882951A (en) * 1959-09-16 1961-11-22 Samuel Lucas Means for protecting plants from slugs and snails
GB2095962A (en) * 1981-04-02 1982-10-13 Mcallister Pauline Olive Sylvi Barrier for repelling garden pests
DE3112950A1 (en) * 1981-03-31 1982-10-14 Erich 9442 Berneck St. Gallen Döring Protective fence for garden beds or garden installations against crawling pests
GB2103062A (en) * 1981-06-16 1983-02-16 Thomas Pfau Protecting plants from slugs
US4471562A (en) * 1982-09-03 1984-09-18 Milton Brucker Snail protective device
GB2146882A (en) * 1983-09-07 1985-05-01 Hopwood Kay Hopwood Limited Barrier
EP0232914A1 (en) * 1986-02-12 1987-08-19 Andreas Böck Snail barrier
GB2216377A (en) * 1987-08-18 1989-10-11 Margaret Jean Manser Protecting plants
GB2223921A (en) * 1988-10-19 1990-04-25 Gordon Rankin Slug barrier

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227637A (en) * 1988-11-29 1990-08-08 James Stephen Lowe Slug barrier

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB882951A (en) * 1959-09-16 1961-11-22 Samuel Lucas Means for protecting plants from slugs and snails
DE3112950A1 (en) * 1981-03-31 1982-10-14 Erich 9442 Berneck St. Gallen Döring Protective fence for garden beds or garden installations against crawling pests
GB2095962A (en) * 1981-04-02 1982-10-13 Mcallister Pauline Olive Sylvi Barrier for repelling garden pests
GB2103062A (en) * 1981-06-16 1983-02-16 Thomas Pfau Protecting plants from slugs
US4471562A (en) * 1982-09-03 1984-09-18 Milton Brucker Snail protective device
GB2146882A (en) * 1983-09-07 1985-05-01 Hopwood Kay Hopwood Limited Barrier
EP0232914A1 (en) * 1986-02-12 1987-08-19 Andreas Böck Snail barrier
GB2216377A (en) * 1987-08-18 1989-10-11 Margaret Jean Manser Protecting plants
GB2223921A (en) * 1988-10-19 1990-04-25 Gordon Rankin Slug barrier

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5379546A (en) * 1992-07-30 1995-01-10 Popp; Richard Bed divider
GB2286759A (en) * 1994-02-18 1995-08-30 Brian Bond Plant protector
GB2291329A (en) * 1994-07-16 1996-01-24 George Edward Jowett A plant protection device
GB2291329B (en) * 1994-07-16 1998-05-06 George Edward Jowett Improvements to the protection of plants
DE19529591A1 (en) * 1995-08-11 1997-02-13 Gerhard Gaus Snail barrier of strip of material with row of bristles along top edge - has bend along top and U=shaped bend holding stuck in bristles
ES2116212A1 (en) * 1996-02-08 1998-07-01 Univ Santiago Compostela Electric barrier or fence for land molluscs (snails, slugs)
US5857288A (en) * 1996-09-05 1999-01-12 Wiste; Wayne V. Right angle lawn edging and method therefor
GB2320881A (en) * 1997-01-02 1998-07-08 Anthony Clifford Anchors Soil-borne pest deterrent wall
GB2335130A (en) * 1998-03-13 1999-09-15 Keith Williams Slug deterrant plant pot
EP1075789A3 (en) * 1999-08-13 2001-05-30 GEDA-Kunststoffe GmbH Protection barrier for surfaces used for gardening
GB2358571A (en) * 2000-01-27 2001-08-01 John Brennan Wyncoll Slug and snail deterrent barrier
GB2358571B (en) * 2000-01-27 2003-11-26 John Brennan Wyncoll Slug and snail deterrent device
FR2821713A1 (en) * 2001-03-08 2002-09-13 Evgenei Stepanovitch Koroid BARRIERS TO PROTECT PLANTS FROM LIMACES
US7793920B2 (en) 2001-07-05 2010-09-14 Vestergaard Sa Fencing
GB2386049A (en) * 2002-02-12 2003-09-10 Simon Chippindale A free standing copper gastropod barrier
GB2386049B (en) * 2002-02-12 2005-07-13 Simon Chippindale Pest controller
US6691454B1 (en) * 2002-08-09 2004-02-17 John E. Conroy System for repelling garden slugs
GB2452487A (en) * 2007-09-04 2009-03-11 Keith Williams Slug barrier
GB2455770A (en) * 2007-12-20 2009-06-24 Steven Rudkin Raised Garden Bed
FR2943503A1 (en) * 2009-03-24 2010-10-01 Dominique Seve Multifunctional device for insulation of culture or breeding zone for e.g. protection of plants to be cultivated within enclosure, has independent chambers receiving repellent adapted to particular culture or breeding pest

Also Published As

Publication number Publication date
GB8912830D0 (en) 1989-07-19
GB9012440D0 (en) 1990-07-25
GB2232052B (en) 1994-01-26

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732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

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