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Posted by Jonno on December 6, 2007, 6:30 am
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other words youre spraying a bit too close to the plants.
Do it when there is no winf ie early in the morning when theres very
little wind. Then you can spray them with some distance in between.
Blackadder wrote:
> Do you use the spray during the day?
>
> I used a similar spray and it ended up burning my roses - but it was on
> account of the sun's heat. If I had done it in the evening or very early
> morning it doesn't happen.
>
> BD
>
>> In early spring my Mum enjoyed the butterflies frolicing among the spires
>> of colourful blooms on her snapdragons. Then she realised it was not the
>> nectar they were coming for--the blossoms were being shredded by hundreds
>> of caterpillers! Not the leaves, just the delicate blooms.
>>
>> So I sprayed the flower heads with a ready-to-go pyrethrum spray. Two
>> days later the blooms had turned brown, burnt by the spray! So she cut
>> off all the flower heads and hoped that more would develop. But ten
>> days later the spires of leaves showed severe burn and the plants had
>> to be cut back to near ground level. Maybe there is still a chance they
>> will reshoot this season.
>>
>> I didn't see any warning on the pack label that plants could be burnt
>> by it. I did apply it generously hoping for a quick kill, but didn't
>> read any caution about being heavy handed. So be warned.
>>
>> I've suggested Dipel or Success for future combat.
>> --
>> John Savage (my news address is not valid for email)
>
>
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