LALSTOP G46 WG Biofungicide 100 Gram Packet


(6 reviews) Write a Review
MSRP: $129.99
Was: $87.99
Now: $67.99
(You save $62.00 )
0.38 LBS
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Product Overview

LALSTOP G46 WG controls a variety of both foliar and soilborne diseases in fruit, vegetable, herb, and ornamental crops. LALSTOP G46 Biofungicide (Prestop WG) contains contains mycelium and spores of Gliocladium catenulatum, a naturally occurring soil fungus that is safe to growers, consumers, beneficial insects, and the surrounding environment. This fungus deprives pathogenic fungi of space and nourishment by colonizing plant roots, where it also acts as a hyperparasite, disrupting cell walls of pathogens and producing metabolites that further inhibit these pathogens.  

  • Controls foliar diseases caused by Alternaria, Anthracnose (Colletotrichum), Bipolaris, Botrytis, Cladosporium, Didymella, Fusarium, Monilinia, Mycosphaerella, Nectria, Penicillium and Sclerotinia
  • Controls root and seed borne diseases casued by Alternaria, Bipolaris, Botrytis, Cladosporium, Colletotrichum, Fusarium, Mycosphaerella, Penicillium, Phytophthora, Plasmodiophora, Plicaria, Pyrenochaeta, Pythium, and Verticillium
  • Suppresses Powdery Mildew, Rhizoctonia, and Sclerotinia
  • Serves as a protective barrier against pathogens, enabling robost plant growth that naturally leads to reduced susceptibility to diseases
  • Compatible with most IPM programs (see Compatibility Guide below)
  • No known risks for resistance due ot multiple modes of action
  • LALSTOP G46 WG is 10x more concentrated than Prestop WP formulation - use at 10% of previous rates! Equivalent to 1 Kilogram of Prestop WP
  • Registered for use in all US States (Hawaii pending approval)
  • Academic trials showed LALSTOP G46 to be superior to Rootshield, Plantshield, Actinovate, Cease, and Serenade against many diseases. LALSTOP G46 is often equally effective to chemical fungicides
  • Ideal for organic growers, 100% safe for human consumption
  • Can be applied as spray, drench, drip irrigation, or incorporated in media or soil
  • Re-Entry Interval:  4 hours  
  • General application interval: every 3-6 weeks
  • OMRI listed
  • Ships as 1x 100 gram packet

Application Rates:

Foliar spray: 0.05% suspension (10g/5 gal water).
Foliar fog: 0.3-.45g/100 sq.ft. See label for water volume.
Soil Drench: 0.01-0.1% suspension (1-10g/gal). See label for depth of media.
Drip: 2.3-4.6 g/100 sq ft.
Incorporation in potting media: A 0.05% suspension (10g/5 gal water) and 8-20 gals per cu.yd.
Hydroponic NFT: 2.5g/1000 plants
Hydroponic Rockwool: 20-25g/1000 plants

Please contact us directly for more specific application rates and instructions


LALSTOP G46 Safety Data Sheet

LALSTOP G46 Compatibility Guide

LALSTOP G46 OMRI Certification


(6 reviews) Write a Review

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  • 5
    Its great

    Posted by Natasha K on 4th Sep 2022

    Thank you very much for clarifying all my doubts before the purchase, the product arrived in perfect condition and on the agreed day. We have been using it for a couple of weeks and it is having good results

  • 5
    Es maginifico

    Posted by Willy Cortez on 25th Aug 2022

    Una gran inversión para nuestra tierra. Lo recomiendo sin duda, el envío llego bien. No dudes tanto como lo hice yo en su momento, valió completamente la pena

  • 5
    Es lo mejor!

    Posted by Roberto Arias on 28th Jul 2022

    Sirve de manera increíble y dura muchísimo tiempo. El envió fue muy bueno sin contra tiempos. Recomendado

  • 5

    Posted by Leslie S on 17th May 2022

    Rapid delivery fungicide arrived within a few business days

  • 5
    FAST delivery

    Posted by April Myers on 7th Oct 2021

    We buy this and Mycostop from EcoGreen. G46 LALstop is the same thing is what used to be called PREstop. The company that makes these products got bought out by a bigger one but the fungicide is the exact same thing.

  • 5

    Posted by Julio Vingertone on 27th Sep 2021

    Same stuff as PRESTOP WP or WG but looks more like the WG which is granules. Same company makes it and it is the same strength.