Spider Mite Killer Sachets

A sachet containing 250 hungry predators (Amblyseius sp.) is the very last thing any spider mites lurking in your greenhouse would want to see and introducing our Spider Mite Killer Sachets will help give you the biological control edge...More information

Pack Content: 250
Rating: 1 2 3 4 5 Read here
Availability: In Stock
Delivery: £3 P&P
Price: £14.95
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A sachet containing 250 hungry predators (Amblyseius sp.) is the very last thing any spider mites lurking in your greenhouse would want to see and introducing our Spider Mite Killer Sachets will help give you the biological control edge in the season long battle against red spider mite, two-spotted spider mite, fruit-tree red spider mite and russet mites; in fact, this voracious predator will even dine on thrips.

We have sachets available for both indoor and outdoor use and their contents can help achieve early treatment and control of red spider mite in temperatures as low as 12°C, keeping your cucumbers, peppers, tomatoes, strawberries and ornamental plants safe and avoiding the tell-tale yellowing foliage and webbing associated with spider mite infestations. Use our Savona Insect Killer Spray to control red mites which have just emerged from hibernation (and are tough for predators to eat) before introducing the Spider Mite Killer Sachets at the first sign of mite colonies.

To get best results from your Spider Mite Killer Sachets, do not introduce until the first signs of spider mite.

Please Note : This live product is despatched to UK addresses only!

  • Each Spider Mite Killer Sachet contains 250 Amblyseius sp. predators
  • Predator will feed on many species of spider mites
  • Will also devour thrips, cyclamen mite and others
  • Sachets are suitable for indoor and outdoor use - select from options below
  • Only introduce sachets once spider mite presence can be seen
  • Hang sachets immediately on receipt
  • Sachets can be stored for a short time at room temperature and out of direct sunlight
  • Use our Savona Insect Killer Spray to control red mites which have just emerged from hibernation
  • Simply hang on fruit trees and soft fruit bushes or in greenhouses
  • Each sachet produces many hundreds of predators and can last for 2-4 weeks
  • Select between 15 or 25 sachets
  • Spider Mite Sachets are water resistant so will tolerate rain or irrigation
  • Predator active between 12°C and 40°C
  • Use as early as January in partially heated greenhouse
  • Sachets allow controlled release of predators
  • Store at 10-15°C and use within 18 hours of receipt
  • Hang each sachet 2 to 4m apart
  • Ideal for spider mite control in soft fruit crops, on fruit trees, greenhouse plants and ornamental flowers

Live Pest Control Delivery

Being a live product the spider mite predators are ordered weekly every Thursday.  These are then delivered on Wednesday of the following week for delivery by the end of the week.

For example an order placed on a Monday would be ordered on Thursday, received the following Wednesday for delivery by the end of that week.

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Number of reviews: 26
Tree saver By Maureen Jeavans 5 14th July 2014

We have an indoor lemon tree raised from a pip over 20 years. In the past 2 years it has suffered from red spider mite which severely affects the growth and development of new leaves. We were afraid we might lose the plant and used the sachets as a final attempt to save it. In just 2 weeks the tree has developed over 200 new leaves and is thriving again. We would always use the predator mites now that we know how effective they are. Well done mites and many thanks Harrod Horticultural!

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Top marks for reliability! By Jennifer Woodley 5 13th February 2013

I have used these sachets for two years now, in 2011 and 2012. In both years they performed well and eradicated the red spider mites from my greenhouse veg within two weeks. In 2011 one sachet each on my aubergine plants did the trick and last year my seemingly half dead cucumber plants (I'd been away for a long weekend) were completely revitalised and went on to produce excellent crops. I have recommended this product to a gardening friend with a polytunnel and she had similar, good results.

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Red Spider Mite Predator in hanging sachets By Anonymous 5 20th November 2012

I used this on tomatoes in the conservatory - its a lot easier to use compared to the predators that come in a carrier that you have to shake on. Seems to have worked well as there is no sign of spider damage and the plants are looking healthy again. I would agree with one of the other reviews which said that the sachets would be better with a date rather than a week number.

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Using Spider Mite Killer Sachets
There are two versions of Spider mite killer sachets both contain the predator; Amblyseius sp. This tiny predator feeds on spider mite eggs, nymphs and adults. It will also feed on other mites and thrip larvae. These predators can be applied to plants much earlier than the traditional predator; Phytoseiulus persimlis. This is because it can survive in conditions of lower temperatures and humidity. It also feeds on a variety of food sources.
The indoor sachets are smaller in size but contain the same amount of predators as the larger outdoor sachets. The sachets release predators for up to two weeks.
The Spider mite killer outdoor sachet is waterproof enabling it to be used on outdoor plants such as strawberries and raspberries. Both sachet products have a small hole punched in them that releases the predators over 1-14 days.
Hang the indoor sachets on plants like cucumbers, aubergines, tomatoes or ornamental plants.
For the outdoor sachets hang them over a plant stem on soft fruit or ornamentals. Distribute the sachets evenly amongst plants, for large plants with spider mite ensure that at least one sachet per plant is applied.
Each sachet contains approx 250 predators. For large infestations of spider mite in the summer months it is recommended to also use spider mite killer predators in bottles.

Using Spider Mite Killer Predators
Apply Spidermite Killer predators (Phytoseiulus persimilis) only when spider mites are present on plants. Rotate the bottle gently before dispensing the predators onto infected plants.
Try to apply to infested leaves and growing points of plants, as spidermites migrate towards growing points. Misting plants before application also improves the environment for predators and helps stick the carrier material to leaves.
Apply the predators as soon as possible after receipt. If this is not possible they can be stored in a fridge for 1-2 days. The temperature in the greenhouse or indoor growing area should be above 20.c for the predators to be active. At these temperatures the predator will breed twice as fast as the spider mite and eats the whole life cycle from egg to adult!
More than one application maybe required if there are high infestations of spider mites on plants.

Appearance and Lifecycle
The two spotted spider mite is also known as red spider mite or the glasshouse spider mite. This is the most common and damaging species found on greenhouse grown plants. It can also be found on soft fruit and ornamentals outdoors. There is also a species that attacks top fruit and orchard grown fruit. Spider mites need temperatures of 12.c or more to be active. The rate of population growth increases as temperatures rise. Spider mites develop more quickly in hot and dry conditions and their development is slowed down in humid conditions.
During summer conditions in a greenhouse, spider mite populations can develop extremely quickly e.g. at 25.c with relative humidity at 55-85%, the life cycle of spider mites can go from egg to egg in less than 10 days. Two spotted mites go through five developmental stages from egg to adult. They are round in shape and are about 0.14mm in diameter. Two spotted spider mites are clear coloured at first, once they start feeding they turn green with two darks spots forming on their body. They are only red in colour when they are going into or coming out of hibernation. This is triggered by shorter day lengths and lower temperatures. During hibernation the spider mites do not feed. Spider mites generally go into hibernation in the autumn and come out of it in the spring. Female spider mites can lay about 100-150 eggs each depending on the type of plant they are feeding on.

Symptoms and Damage
Spider mites feed on plant tissue and plant sap. This starts as fine speckling on plant leaves, normally on the underside of leaves at first. Eventually leaves go yellow and die. Spider mites also produce webbing when their population level rise and this can cover plants. Spider mites use this webbing to move from plant to plant. They also move from leaf to leaf if plants are touching. Spider mites can totally destroy crops of cucumbers, aubergines and tomatoes if not treated. They are also a threat to ornamentals and soft fruit.

Natural Choice Treatments
Early identification and treatment of spider mites is important. Start checking any overwintering plants in greenhouses early in the year especially when day lengths start to increase. There are safe sprays such as Savona for controlling spider mites early on or for treating hot spots later in the season. Biological control can be achieved using tiny predators of spider mites. Amblyseius sp. in spider mite killer sachets for early treatments and Phytoseiulus persimilis in spider mite killer bottles for curative treatments in the summer.

Live Pest Control Delivery

Being a live product the spider mite predators are ordered weekly every Thursday.  These are then delivered on Wednesday of the following week for delivery by the end of the week.

For example an order placed on a Monday would be ordered on Thursday, received the following Wednesday for delivery by the end of that week.

 

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