Showing posts with label tobacco hornworm. Show all posts
Showing posts with label tobacco hornworm. Show all posts

Monday, September 7, 2015

Skip forward to harvest time

This summer has been a very busy one. Various other responsibilities (including a new job) have left me with very little time to keep up with this blog. Fortunately, my hops can look after themselves to a great extent, especially with an automatic drip watering system in place. I was able to take a picture for the weekly overview and I've put the progression down the right hand side of the web-version. You can see from these that both plants do very little growing over August and September. Can't really blame them though, it's been very hot here (even the grass has stopped growing).

The whole reason for growing hops is to have cones that can be harvested and put in beer. The first cones appeared at the end of May:


This is in a very early stage of development. My understanding is this is the stage at which they may be pollinated if there are male plants in the vicinity. As with last year, the Columbus produced both male:


And female cones (you can see some male flowers in this pic too):


I have yet to see any indication that there has been any successful pollination happening, either with itself or the Cascade which is right beside it. Some of this is presumably due to the timing, the male flowers always appear after the female flowers (on both plants) are no longer in the receptive "burr" stage.

The final result of all this growth and cone formation was this:
 

12oz of Columbus and 1oz of Cascade were vacuum sealed and thrown in the freezer. Shame that the Cascade proved to not be very productive this year. Perhaps this will improve once it has established itself more. Alternatively, the Columbus may just push out all of the competition. The Willamette has been almost absent this year. Here's what it looks like at the start of September (you might just be able to see it growing up along the string of lights to the right):


One of the nice things about having a nano operation like this is that I can get more than one harvest per year. While I was picking these first cones I saw this on the Columbus:


Which led to this second harvest (close to another 5oz of Columbus):


Looking forward to putting these into some beer later in the year.

Bugs have caused as much of a problem as they did last year, which is to say not enough to make a noticeable difference to the growth of the plants. Here's a typical example of the worst kind of leaf damage I've seen:


Anybody following from my days in Houston might remember I had previously found a tobacco hornworm on our tomato plants next to my hops. Same thing happened this year too, only with a worse outcome for the hornworms:


This rather gruesome end comes thanks to a parasitic (Braconid) wasp that lays its eggs inside the worm. When the eggs hatch they eat the hornworm from the inside. When the time comes they chew their way through the skin and form a pupa on the outside (those small white things hanging from the worm). Not entirely sure how they convince the hornworm to grip the underside of the plant like that but then I'm also not entirely sorry for them either.

Now we are into September there are signs that Autumn may be on its way. The Cascade, which has always been less productive in comparison to the Columbus, already has some bines that have died off:


The Columbus also has some signs of the oncoming autumnal purge, even if not quite as dramatic as the Cascade:


All told the summer appears to have been much less productive compared to last year. The Columbus gave me a ~1lb this year compared to nearly 2lbs last year, the Cascade a handful of cones vs nearly 2oz last year, and the Willamette barely even appeared and didn't produce any cones at all. I'm wondering if this is due to neglect on my part or perhaps the extreme heat of this summer. I don't remember the grass stopping growing altogether last year. All of this after the extreme cold of last winter. I had to entirely cut back a pair of well established fig trees that didn't make it through the cold. Obviously, I'm leaning towards the climate being the problem, especially given that we used an automatic drip system this year which should have taken a lot of the neglect out of the equation. Hopefully the coming winter will be milder and the following summer kinder. Regardless, I will still be using what I've gathered for a fresh hopped beer of some description in the coming months.

Saturday, June 30, 2012

Turning over an old leaf (and more bugs)

Something I have noticed more and more is that the older leaves on my hop plants are becoming discoloured and even brown. There is a definite gradation from top to bottom, which is why I think it is associated with age. It is most notable on the Willamette:


but can also be seen on the Goldings:


and the Northern Brewer:


Currently I am happy to attribute this to general aging and being constantly exposed to the Texas sun. It is particularly noteworthy that the Willamette is sending out secondary shoots in the same region as the damaged leaves, which are a healthy green colour. This is the main reason I don't think it is a nutrition problem. The same is most likely true for an infection of any kind. The shoots are possibly also a natural reaction to the loss of these old leaves. All of the plants are doing really well so I'm not worrying about it.

On a completely different, more bug related note, I found this guy on our tomato plant not too far away from my hops:


I was told initially that this is a tomato hornworm. I've left my thumb in the picture to give you some idea of scale, not a small critter. Further reading seems to indicate that mine is in fact a tobacco hornworm rather than a tomato one. As you can see by this picture they look very much the same:


The most obvious difference is that the tobacco variety has stripes on its side whereas this one has V shapes. Also, the "horn" at the back (looks more like a tail to me) is black on the tomato version and red on the tobacco. If you look very closely on my picture you can see the red tail disappearing behind a leaf. The moths they turn into are even more alike. Here is the tobacco one:


And the tomato version:


Glad I don't have to tell these two apart. I haven't seen any indication that the larva has moved from the tomato plant and onto the hops. Somehow I think it will be a lot easier to spot on the hops than the tomato plant and so will quickly be dealt with.