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     Weekly Topics/Archive
          Jun e2017


Mystery of nature(3)
    〜The relationship between cabbage white butterfly and cabbage〜

                                    
No.264−Jun22.,2017

 
There were rice paddies behind my house till 5 years ago.
They became fallow fields after that and lay waste for some time.
When I said to the farmer who is owner of the paddies, “It's a waste to be
fallow field”, he responded that it can't be helped because of the aging of
his family and the lack of successor.

After that, a local food supplier that leased the paddy field from him got
started using it as a vegetable farm a year before and a wide variety of
vegetables is now harvested.

[Note] rice paddy ; 水田、cabbage white butterfly ; モンシロチョウ、cabbage ; キャベツ
 fallow field ; 休耕田、lie waste ; 荒れ(果て)ている、it can't be helped ; やむをえない
 successor ; 後継者、lease something from 〜 ; 〜から賃借する
 get started doing ; 〜をし始める

 This supplier has entered the school lunch business in Kusatsu City and
fresh vegetables from the farm have been supplied for itself as food materials
for the school lunch, I heard.
I think it's good for the land to be effectively utilized in a productive
manner.

[Note] enter the business ; ビジネスに参入する、school lunch ; 学校給食
 supply 〜 for itself ; 〜を自給する、
effectively utilize ; 有効活用する
 in a productive manner ; 生産的に

The vegetable farm of food supplier behind my house (2017.09.19_14:16)

 Not only green vegetables such as cabbage, broccoli, sunny lettuce but also
carrot, eggplant, squarsh, tomato and so on are grown in the farm.

The view of the vegetable farm from the back of my house (2017.06.18_12:30)

 With the advent of the farm, the scene I have never seen before came to be
recently observed.
Though there are also rice paddies near my house, recently I have seen
cabbage white butterflies flying only in the farm.

Especially, many of them can be seen mainly in cabbage patches.
You can't recognize the butterflies in the above picture because their images
are too small.

[Note] eggplant ; ナスビ、with the advent of 〜 ; 〜の出現(とともに)で
 cabbage patch ; キャベツ畑

 I can't comprehend why the cabbage white butterflies appear around green
vegetables like cabbage some time after they are planted.
In addition, even in this wet season.
I had an image in my mind of it as insect that I often see in early spring
when field mustard blooms.

[Note] comprehend ; (複雑なこと)を理解する
 have an image of 〜 as --- ;
〜に対して---というイメージを持つ
 
field mustard ; 菜の花(アブラ菜)

 And so, I borrowed the help again from Wikipedia on “Cabbage white butterfly”.
I could understand the reason from it.


 According to it, white butterfly can be seen for a long term from around
March to around October and arises 4 to 5 times a year, especially 7 times
in the temperate region.
It means that white butterfly lays eggs and develops to the adult stage 4 to 7
times a year.
In addition, I knew the larval food plant is cruciferous plants such as
cabbage, field mustard, broccoli and so on.

 Another big question on my mind is where white butterfly comes from at
the patch where cruciferous plants like cabbage are planted.

[Note] temperate region ; 温暖な地域、lay eggs ; 産卵する
 develop to the adult stage ;
成虫になる、larval ; 幼虫の、food plant ; 食用植物
  cruciferous ; アブラナ科の

 White butterfly may have a special visual sense or olfactory one.
Does it comes flying from nowhere by identifying the location of the cabbage
patches with either descrimination power of them ?
White butterfly's eggs already attached to cabbage seedlings when they are
planted hatched at a later date and then became an adult ?
At any rate, I'm sure the reason is either one of the two.

 It comforts me to see cabbage white butterflies flying.
It's the scene that can be seldom seen in the big city.

[Now] visual sense / olfactory sense ; 視覚/嗅覚、from nowhere ; どこからともなく
 nowhere ; どこかわからない場所、どこにも〜ない
 
identify the location of 〜; 〜の位置を特定する、descrimination power ; 識別力
 cabbage seedling ; キャベツの苗、hatch ; 孵化する、at a later date ; 後日
 either one of the two ; 二つのうちのどちらか
 comfort ; (人を精神的・肉体的に)楽にする、心を和ませる

Japanese Diary / No.806−2017.06.20 /
              
「自然界の不思議(3) 〜キャベツとモンシロチョウ〜」



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