digitS'
Garden Master
Aphids are fairly easy to kill and surprisingly difficult ...
What I mean is that I don't understand how they can be such a problem and their numbers rebound so quickly. Maybe it's just that I underestimate their initial population numbers and wiping out 85% of a bazillion just doesn't mean much after the 15% plump-up once they have more elbow room.
We are told that aphids reproduce sexually and asexually with generations of all females (link). Whoa!
Anyway, my first experience with Brussels sprouts last year was an aphid battle. They were at a disadvantage on the Brussels sprouts compared to their cousins hiding in the cabbage leaves. I could hit them with the spray.
Insecticidal soap one week and pyrethrum the next, that seemed to do them in fairly well.
Steve
What I mean is that I don't understand how they can be such a problem and their numbers rebound so quickly. Maybe it's just that I underestimate their initial population numbers and wiping out 85% of a bazillion just doesn't mean much after the 15% plump-up once they have more elbow room.
We are told that aphids reproduce sexually and asexually with generations of all females (link). Whoa!
Anyway, my first experience with Brussels sprouts last year was an aphid battle. They were at a disadvantage on the Brussels sprouts compared to their cousins hiding in the cabbage leaves. I could hit them with the spray.
Insecticidal soap one week and pyrethrum the next, that seemed to do them in fairly well.
Steve