Today I spent a bit of time performing various vineyard operations; training baby vines up stakes, clearing weeds from the bases of some vines and pulling leaves (and laterals) in the fruit zone. Just as I was about to remove what I thought was a crumpled up, dead Syrah leaf I realised, right as I was about to grab it, that it was a rather large moth. At about 3.5 inches wide it is the biggest moth I have ever seen.
The Achemon sphinx moth (Eumorpha Achemon) is an occasional California vineyard pest as it is quite fond of feeding on wild and cultivated Vitis species. The adult moths are rarely seen as they fly only at night and usually hide during the day. Achemon caterpillars are rapacious feeders and can consume 9 Vitis leaves in a 24 hour period. Great! Not exactly the type of leaf removal I was planning on. I haven't spotted any naked vines thus far, so I think Vinoland is safe - for now.
Showing posts with label pest management. Show all posts
Showing posts with label pest management. Show all posts
Sunday, August 23, 2015
Sunday, June 27, 2010
Ladybirds welcome.
Some alarmist folks warn of the possible problem of ladybird taint, (certain unpleasant volatile compounds that impair the taste or bouquet of a finished wine), if there are a sufficient number of the insects on winegrapes when they are being processed. In more than a decade of witnessing ton after ton of grapes being processed I can't say I am overly concerned with what would be an extremely rare phenomenon. Lots of spiders and earwigs, that unfortunately do not live to tell their tale, but no ladybirds.
Labels:
IPM,
ladybirds,
pest management,
taint
Thursday, June 17, 2010
Wrong time and place.
Vinomaker and I for the past several weeks, have been enjoying a glass of wine on the deck every evening at dusk, with the express intent of spotting the pair of barn owls who leave, from the exact same direction each night, on their hunting trips. We have been rewarded with low flybys over the vineyard and even one owl that alighted upon the rollbar of the tractor and glared down the vine rows.
I love barn owls and I hope this particular little guy/gal survives to one day hunt down all of Vinoland's gophers.
Labels:
Barn owl,
Gophers,
pest management
Tuesday, May 25, 2010
And the great heron feeds.
And to think Vinomaker and I installed owl boxes for rodent control, maybe we needn't have bothered.
Labels:
berry,
Gophers,
heron,
pest management
Saturday, January 17, 2009
Micro Pest Management.
Godspeed little one...just leave my favourite lizards alone!
Friday, January 09, 2009
Vine Land Security.
It's still going to be winter for quite a while yet. Perhaps less so in California than other parts of the world, I admit, but it seems almost spring like this morning.The local red-shouldered hawk, (Buteo lineatus), population seems to be out in full force today. A pair has spent the morning hunting in our vineyard, hopefully successful in partaking of a fresh, juicy breakfast of Pocket Gopher. Others flew overhead, their voices loud in warning, for whatever reason, to the ever circling Turkey Vultures, (Cathartes aura). These super ugly birds, by the way, drive the Vinodogs crazy. Not hawks, not crows, just vultures.
Gophers are responsible for the death of many a vine in the vineyard. They nibble their way through the roots which eventually causes the vine to die. Then they move on to the next vine!!! In her day V1 used to do a pretty good job of keeping the rodent inhabitants of our little part of Napa in check. In her prime she was very adept at dispatching the little devils in two quick chomps. However she has slowed up of late and Vinomaker and I have had to employ other means of 'pest management'.
Owl boxes are one approach, so we have several strategically dotted around the property. Alas, as of yet we have no occupants. I don't understand why, they are really nice boxes made by a friend, the view is fabulous and the rent is free...meals included.
Labels:
Gophers,
hawks,
pest management,
vultures,
wild west
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