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Whitefly Killer - Pesticide Free


In a nutshell....

This whitefly killer is chemical free and based on a seaweed extract. Perfect for use controlling aphids and other pests around food crops and in enclosed places.

This product is currently out of stock

Natural Control Of Whitefly In The Greenhouse Or Garden

Whitefly killer is for pesticide free control of the whitefly in the garden, polytunnel or greenhouse. It is based on a seaweed extract and is completely chemical free. Whitefly killer works by physical contact. It kills the pests as soon as it touches them. It works particularly well on any member of the whitefly family, from the glasshouse whitefly on tomatoes to the cabbage whitefly on brassica plants.

Measure 100ml of the concentrate and mix thoroughly with clean water to make 1 litre of spray solution. Apply with a fine spray ensuring coverage of the target insects. It is particularly important that the undersides of the leaves are treated. When the insect problem is at its most severe, treat it at weekly intervals. In the greenhouse Whitefly Killer can be used in conjunction with the biological control agent Encarsia formosa.

Do not spray young plants (those with less than 6 leaves) and never spray under hot, bright conditions – or some scorch may occur. Store in a safe place out of the reach of children. It is based on seaweed extracts and as a result is chemical free.

Contents: 500ml Concentrated, makes 5 litres of spray 

500ml Concentrated, makes 5 litres of spray 

Ask a Question
Asked By Eric
on August 23rd, 2020
Will thus pest kill aphids, black fly and red spider mite?
Answered by Niall
on August 24th, 2020
Hi Eric It will kill Aphids and Black fly but i am not sure about red spider mite. I would have thought it will but i can't be 100% sure Niall Quickcrop

garden website delivery information


Important Delivery Information October 2020 - Covid 19

We will be operating our business as usual over the coming months as thankfully, current lockdown measures haven't required us to close our warehouses. Delivery times had been impacted earlier in the year with the increase in online shopping putting immense strain on couriers. We are nearly back to normal here in Quickcrop so we expect to have your order to you within 2-5 working days, and 7-10 working days for Raised Bed orders.

We sincerely apologise for any inconvenience which may have been caused due to Covid-19 and very much appreciate your patience during this time. Some of our customers had delays in receiving their orders in a timely manner but thankfully 99% of orders got through on schedule.

Unless 10 working days have elapsed since you placed your order please try to avoid contacting the office for delivery information as answering queries further slows packing. The Exception to this is our raised ponds which will take two weeks to be dispatched from our warehouse and and delivered to you. Of course if you have received a damaged item, are missing something or are over the 10 day lead time please feel free to email us at and we will respond quickly, usually within the hour.


All standard Quickcrop deliveries (including all raised beds) only €3.95.

All our deliveries are only €3.95 no matter how many products we deliver anywhere in Ireland. We also deliver to the UK and other European countries, please see our delivery rates below. Our flat delivery rate is an absolute bargain and is far cheaper than any of our competitors, please take this into account when comparing product prices.

Where do we deliver to?
We deliver nationwide to the island of Ireland, the U.K., Austria, Benelux Countries, Czech Republic, Denmark, Finland, France, Germany, Hungary, Italy, Norway, Poland, Portugal, Spain, Slovakia, Slovenia, Sweden and Switzerland. Please see our delivery rates below:

€3.95 - Standard rate for the Island of Ireland.

€12.95 - The United Kingdom (Highlands and Islands may incur a surcharge, please contact us on 353 1524 0884 for details)

€14.95 - Austria, Belgium, The Netherlands, Luxembourg, Denmark, France, Germany, Switzerland.

How long does it take?
Stock permitting we aim to dispatch your goods within 2 working days of receiving your order. The average time taken from order to delivery is 4 - 5 days for Irish and UK orders, and up to 8 working days for other European destinations.

What If I'm not in at time of delivery?
The driver will leave a note with the depot contact number. Delivery can be arranged for the next day or a later date.

I'm ordering several items, do they all arrive at the same time?
All items dispatched at the same time will normally be delivered in one delivery. The exceptions are bulk bags of soil or compost which comes in a separate delivery using a different delivery company.

What if my parcel is damaged or I wish to return the goods I have ordered?
Contact our office on 01 524 0884 and we will arrange collection and refund or replacement of faulty or damaged goods.

If you wish to return goods for any reason other than damaged or faulty items please return the item to us at the following address and we will issue a refund minus the delivery charge. Goods must be undamaged and in their original packaging. Please take care when parceling returned goods to ensure it reaches us in good condition.

Our returns address is: Quickcrop ltd., Unit 4, Ballymote Industrial Estate, Ballymote, Co.Sligo.


If you are unsure about any aspect of our delivery service, feel free to get in touch using the Contact Us Button Above.

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