Greetings Rye,
I believe this term is a carry over from a time when pest management
applications would 'cover' the commodity in a blanket of spray
following the critical petal fall application. This PF event
typically occurs at roughly 80% of the petals falling from a variety
such as
: Re: [apple-crop] definitions question: first, second, third cover
Greetings Rye,
I believe this term is a carry over from a time when pest management
applications would 'cover' the commodity in a blanket of spray following the
critical petal fall application. This PF event typically occurs
I tend to agree the term 'cover' is becoming archaic in regards to modern fruit
growing -
I did look thru some historical references I have handy and in the 1936
Michigan spray calendar the 'first cover' is applied 10 days after petal-fall,
with the 'second cover' applied 10 days after the
