Aquaponics Digest - Tue 07/13/99




Message   1: Fwd. [IBS-GEN] straw to control algal booms

             from S & S Aqua Farm 

Message   2: Lacewings and other beneficial insects

             from Adriana Gutierrez & Dennis LaGatta

Message   3: Re: Lacewings and other beneficial insects

             from Dave Miller 

Message   4: Re: Lacewings and other beneficial insects

             from William Evans 

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| Message 1                                                           |

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Subject: Fwd. [IBS-GEN] straw to control algal booms

From:    S & S Aqua Farm 

Date:    Tue, 13 Jul 1999 08:24:12 -0500

Following is a portion of a post seen on the IBS list.  I would be pleased

to forward the entire message privately to anyone who wants it, but hesitate

to post to the list because of it's length.  Please contact me at

snsaquasys@townsqr.com     Paula

----------------------------------------------------

Date:         Thu, 8 Jul 1999 15:30:21 +0200

Reply-To:     "IBSnet: General Forum on Integrated Bio-Systems"

              

Sender:       "IBSnet: General Forum on Integrated Bio-Systems"

              

From:         Jacky Foo 

Subject:      [IBS-GEN] straw to control algal booms

To:           ET-W1@SEGATE.SUNET.SE

------forwarded

Frm: Jacky Foo 

Questions on the use of straw to control algal booms have been asked from

time to time and here is a response with concrete information. I also hope

that the information will stimulate some discussion.

regards

jacky

----------------------------------------------------------------------

Source: lakes-l@Badger.state.wi.us

>Has any one here ever heard of using barley straw as a

>means to decrease algal growth in ponds or small

>lakes?  The lakes in question are in central Ontario.

The Centre for Aquatic Plant Management (previously the Aquatic Weeds

Research Unit) publishes an information sheet on the practical application

of straw. I am posting the text of it below. If anyone wants the version

with pictures please email me and I can send you a WordPerfect 6 version of

the file (or any other format you want). We have been involved in the

research on straw for about 15 years now and can recommend as a good

treatment. There are still some unknowns about dose rate and why it doesn't

work in all ponds, but in most cases it gives good, long-lasting control.

We have also published scientific papers on the process which I can also

send out by post if anyone is interested.

Dr Jonathan Newman

Senior Research Scientist

IACR Centre for Aquatic Plant Management

Broadmoor Lane, Sonning,

Reading, Berkshire, RG4 0TH, UK

IACR_CAPM@compuserve.com

Tel: +44 (0) 118 969 0072

Fax: +44 (0) 118 944 1730

+++++

IACR-CENTRE FOR AQUATIC PLANT MANAGEMENT INFORMATION SHEET 3: CONTROL OF

ALGAE WITH STRAW INTRODUCTION

Algae cause a number of problems in water. They impede flow in drainage

systems, block pumps and sluices, interfere with navigation, fishing and

other forms of recreation,cause taint and odour problems in potable waters,

block filters and, in some instances, create a health hazard to humans,

livestock and wildlife. These problems seem to be increasing, probably

because nutrient levels in water are rising as a result of human activity

and natural processes. At the same time there is a growing worldwide demand

for improvement in water quality. Thus, the need to control algae is

increasing for environmental, recreational and public health reasons.

  

-------------------------------------------------------------------

S&S Aqua Farm, 8386 County Road 8820, West Plains, MO 65775  417-256-5124

Web page  http://www.townsqr.com/snsaqua/

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| Message 2                                                           |

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Subject: Lacewings and other beneficial insects

From:    Adriana Gutierrez & Dennis LaGatta 

Date:    Tue, 13 Jul 1999 13:07:18 -0400

I'm looking into introducing lacewings into my greenhouse for

genaeral-purpose pest control and am coming across radically different

recommendations and pricing. 

Recommended # larvae - 

- Local distributor - 1,000 per 2,500 square feet

- Gardens Alive! - 1,000 per 200-900 square feet (900 is for preventive)

Price

-  Local distributor $25/1,000 larvae, $16/5,000 eggs

-  Gardens Alive! - $12-14 / 1,000 Larvae/eggs (depends on species)

Is this a case of "pay peanuts, get monkeys?" or am I paying a premium

for going through a middleman? 

Has anybody had any experience using Trichogramma parasites to control

worms?  Gardens Alive! has a package deal called "Attack Squad" which is

3 bi-weekly shipments of 1,000 lacewings and  8,000 trichogramma for

ONLY $54.75 (chaching$$!)

Adriana Gutierrez

Green Cuisine

Sarasota, Fl.

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| Message 3                                                           |

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Subject: Re: Lacewings and other beneficial insects

From:    Dave Miller 

Date:    Tue, 13 Jul 1999 13:54:23 -0400

Adriana,

Go with Gardens Alive as they are reliable. They often have coupons on

their catalog especially to attract first time buyers so call them and

ask if they have catalog coupons or an introductory special. You might

get a discount now or a discount toward future purchases.

The attack program sounds reasonable though I don't have experience with

it.

-- 

If we lose sight of reality - we lose sight of truth. 

If we lose sight of truth - we lose sight of spirit. 

If we lose sight of spirit - we lose ourselves.

If we lose ourself - we come back here and try again!

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| Message 4                                                           |

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Subject: Re: Lacewings and other beneficial insects

From:    William Evans 

Date:    Tue, 13 Jul 1999 11:26:34 -0700

  Could contact Rincon Vitova Insectiary for prices...They're

direct...and one of the originals---email bugnet@west.net

Bill Evans

> 

> I'm looking into introducing lacewings into my greenhouse for

> genaeral-purpose pest control and am coming across

S&S Aqua Farm, 8386 County Road 8820, West Plains, MO 65775  417-256-5124

Web page  http://www.townsqr.com/snsaqua/



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