早朝散歩から帰ってバルコニーの棗苗を見回ってショック。早脆王と冬棗の実が齧られていました。コガネ成虫の姿はありませんでしたが、庭の皇帝ナツメの齧り跡とそっくりです。
これ↓はバルコニーの床に落ちていた早脆王。納得できないのは、コガネ成虫がナツメの幼果を齧っても、害に会った実が地面に落ちているのを見たことはないので、本当にコガネの仕業かは断言できません。
After coming home from our morning walk, I went upstairs to check the jujube trees on the balcony. I found out that some fruits of Early Crisp King and Winter Jujube had been nibbled at. I did not see any green beetles, but the damaged parts look very similar to those of the young fruits on the Emperor Jujube.
This is one of the fruits of Early Crisp King that had fallen on the balcony floor. What puzzles me is that those young fruits damaged by green beetles never fell off the tree, either this year or last year. The beetle seems to take a bite and move from a branch to another branch, with the damaged fruits staying on the branch. So, the culprit is yet to be identified.
早脆王は2年目なので、木が随分と大きくなりました。
The Early Crisp King has grown into a large tree, since this is its 2nd year of growth.
去年は2個だけ生ったのに対し、今年はそこそこの数が生っています。
The tree had only 2 fruits last year - this year, quite a few.
また、実のサイズもアップ。去年の写真を見ると9月時点でもこれよりずっと小さな実でした。写真右に写っている齧られた実から分かるように、まだまだ青くて水分もありません。また、完熟時には今のような細長い実ではなくてもっと横幅がつくはずです。なので、この品種のセールス文句の「7月下旬には白熟期に入る」というのは、これまでのところ当たりません。
Also, the size of the fruit is larger than last year's. They were smaller than this even as of September last year, judging from the photo then. The fruits are nowhere near ripening yet, as you can see from the damaged fruit on the right. Also, the flesh looks dry. According to photos of ripe Early Crisp King that I can see abroad, the fruit should not look as elongated as this but should have a much broader width. If it is going to take a lot longer to ripen, then the sales talk 'the fruits' flesh turns white and brittle in late July' does not seem appropriate.
こちらは
冬棗が齧られて床に落ちていたものです。
This is a damaged Winter Jujube that I found on the floor.
冬棗の苗は春の成長と夏の成長の2段階がはっきりしていました。この写真の真ん中から上半分が、
I got this tree in summer last year. This year, the tree had two distinct growth phases. The top half of the tree in this photo
この状態で、
looks like this, and
こちらは下半分です。下半分は去年の夏のうちに枝張が充実していたので、今年はそれらの枝に1年限りの細い枝がどっさり出て花を咲かせました。なので、上の写真の苗の上半分は来年の夏に実がたくさん着くでしょう。
the lower half looks like this. The bottom half grew several short and mature branches during last summer, and this year, a lot of fruit bearing small limbs came out with lots of flowers. So, the top half will probably look like this next year.
実は、この苗、本当に冬棗なのか以下の理由から半信半疑です。1)葉っぱの形が全然 冬棗ではない。2)冬棗は最初の数年間は実が着きにくい品種のはず。3)実のサイズが小さい!
Actually, I am not quite sure that this is genuine Winter Jujube: 1) the leaves do not look anything like those of the Winter Jujube's, 2) Winter Jujubes produce hardly any fruits for the first several years, 3) the size of the fruit is far too tiny!
大きいものでこの程度しかありません。
The one on the extreme right is one of the largest fruits.
これ以上 幼果が齧られる被害を防ぐために、早脆王、冬棗のそれぞれに防虫ネットを掛けました。網目は1センチ角なので、よほど小さいコガネでない限り侵入できないはずです。網目に小枝が引っ掛かって作業は簡単にはいきませんでしたが、これなら今から咲く花に小さな虫(3-4ミリサイズ)がやって来るはずです。(先日の皇帝棗に使った網は1ミリ角だったので、それ以降に咲いた花には幼果が育っていません。)
So as to prevent any more damages by insects or whatever, I covered Early Crisp King and Winter Jujube individually. The size of the mesh is 1 cm square. Normal-sized green beetles would not be able to enter, whilst the tiny flies (3-4 mm size) that come for the honey will easily get through. (The protective net I used for the Emperor Jujube in the garden was finer, with 1 mm squares. As a result, flowers that opened after the netting have not produced any young fruits.)
網掛けでヘトヘトになったので、冬棗を1個とって後で味見することにしました。「冬棗」という名にも拘わらず、この品種は早生で8月後半から収穫が始まるようです。
Putting the nets on was an extremely tiring task, so I picked a Winter Jujube to reward myself. In spite of the name 'Winter' jujube, farmers seem to start harvesting from the 2nd half of August onwards.
その隣に置いてある蟠棗は、今年は悲惨な状況です。1個だけ着果した実はこのありさまで、完熟まで育つかさえ疑わしい。
Sitting next to the Winter Jujube plant is Panzao. Although this variety was the reason for my ordering a few different varieties, it has not done well at all. This is the only fruit on this tree and I am not sure if it will grow to maturity.
しかも、葉っぱの多くが茶色く日焼けしています。たぶん、根っこに問題があるようです。
Moreover, some of the leaves are brown from the strong sun. I think there is something wrong with the roots.
バルコニーの物干し場を挟んで少し離れたところにあるのは
無核金絲棗で、やはり2年目の苗。
A few meters away across the spot where I put out my washing to dry, there is Seedless Gold Thread Jujube, another 2nd year plant.
去年は4個の実が生りましたが、ことしは早脆王同様そこそこ生っています。
This tree had 4 fruits last year, and this year it is doing not too badly.
苗を反対側から見るとこの状態。
This is how it looks on the other side of the tree.
実の大きさも早脆王の実と同じくらいのサイズです。
The sizes of the young fruits are very similar to those of Early Crisp King's.
物干し場には今年から加わった2苗があります。右のは
新疆棗王、左のは
大雪棗。
On the spot where I dry my laundry, there are two more trees: Xinjiang Jujube and Big Snow Jujube.
この
新疆棗王は、最初に送られてきた苗が春になっても芽吹かなかったので、その代替苗として5月21に届いた苗です。新芽のうちの1本が50センチくらいに伸びてきました。
This is Xinjiang Jujube that arrived as the replacement of the first one which did not put out any buds in the spring. It arrived on 21st May this year, and one of the new buds has grown to about 50 cm now.
これは
大雪棗の1本目があまりに貧弱な苗だったので、予備として他のお店から取り寄せたものです。が、結果的にはこちらのほうが異常な育ちかたをしています。恒久的な枝が1本も無い状態で数個の実が育っています。
This is Big Snow Jujube that I got as a spare. The first plant was so scraggy that I thought it was going to die before spring. So, I bought this from another shop. In the end, this spare turned out to be a dud, and the first one grew very nicely. On this spare tree, there is no permanent branch, and the fruits that you can see are growing on the little limbs that will fall off in winter.
予備苗なので、自分の勉強のために実験的に放置しています。
But, no worry. Since this is a spare, I am allowing it to do what it wants - I will be able to learn something new from the experience.
以上が南向きバルコニーの棗苗(バルコニーはL字型で、長辺が南向き、短辺が東向き)・
The above are all the jujube plants on the south side of the house (my balcony is L-shaped. The longer side faces the south, and the shorter side faces the east).
以下は東向きバルコニーの苗。
The following are plants on the east side.
これは2年前に買った
日本棗の大苗に出てきたヒコバエのうちの1本。去年の冬に地上70cmほどのところでカットしたのに、今年の春に出た枝が真っ直ぐに伸びてしまいました。
This is a 2nd year sucker from the Japanese jujube tree that I bought 2 summers ago. At the end of last year, I cut it down to 70 cm in height. However, the bud that came out at the top of the tree has grown more than 50 cm and has extended the trunk.
こちらはもう1本のヒコバエ。同じく地上70cmのところで切ったあと、今年は1年限りの細い枝しか出ずに、実が数珠つなぎのように生っています。この苗の樹姿は去年のと全く同じ。
This is another sucker of the same tree. As with the sucker above, I cut it down to 70 cm in winter and it has stayed at that height. It now has a lot of temporary limbs with lots of young fruits. In fact, this is exactly how the tree looked this time last year.
こちらは
大雪棗の最初に買った苗。
This is the Big Snow Jujube tree that arrived looking very scraggy. Contrary to my expectation, it has grown nicely and
今では2個の実が育っています。
it recently produced two young fruits.
===========================試し採りした冬棗の実。なるべく色づいたものを選んだので、実のサイズは小さいです。
This is the Winter Jujube fruit that I picked to see the taste. I chose it since the colour looked more mature than others, but the size is not great.
糖度は、あくまでも糖度計の数値ですが、46.8%。実際に食べてみると、砂糖菓子のように甘いです。ただし水分はまだ入っていない。(冬棗はジューシーなことで有名。)
If you believe the Brix meter, the sugar content was 46.8%. Indeed, it was very sweet like a sweet snack. However, since the fruit was not mature yet, it was not juicy. (The Winter Jujube is known for its juiciness.)