Cypress Aphids

[benedmonds]

I have been asked to spray for aphids on a 4m high by 20m long leylandii hedge! We've got a backpack sprayer and PA1 and PA6.

 

Any one done it, or have any info on what to use and rates?

[Meep]

Try Bandu at 70ml per 100litres of water its a broad based pyrethroid insecticide which will give good control to aphids. Its a very strong insecticide so don't add any more than this rate.

 

Do a follow up spray 14-21 days after the first application.

 

The good benefits are that its rain fast within an hour the only problem is its quiet expensive.

 

Hope that helps :-)

[shillo]

ive used Aphux before and that worked well, again repeat spray after 2 wks ish, i was advised to spray with a fungicide at the same time to reduce likelyhood of fungi attaching damaged caused by aphids, i used octave.

 

i was told also that i should spray again the next spring as you are very unlikely to cure problem just reduce incidence, the thuja hedge is now a lovely green not brown!

 

i just went up and down a ladder a lot with the sprayer on my back not fun, but got to be done

[Big 'Ammer]

i just went up and down a ladder a lot with the sprayer on my back not fun, but got to be done

 

Sounds like hard work and not good balancing on a ladder with a moving mass on your back.

 

Easier and safer to get 5m of hose and fit it in the system between the trigger and the jet and tape it onto a pole or whatever and stand on the ground and do it.

 

Or tell 'em its 'Health and Safety, mate' and do it out of a mewp, and charge plenty.

[Log-ologist]

Is cypress aphid the problem? We seem to get lots of juniper scale insects here. They love golden leylandii ( castlewellan ) but rarely chomp into the plain green.

 

http://www.aie.org.uk/trunkline/pests/aie_pd_scale2.html