FREE BOOKS

Author's List




PREV.   NEXT  
|<   47   48   49   50   51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66   67   68   69   70   71  
72   73   74   75   76   77   78   79   80   81   82   83   84   85   86   87   88   89   90   91   92   93   94   95   96   >>   >|  
there is no need to collect and kill the worms by hand. A good way to do this is to spray with Paris green, in the usual way, a patch of young clover, then cut it and scatter it in small bunches over the cauliflower field a day or two before setting the plants. For the protection of a few plants in the garden, an effectual preventive against cut worms is to surround the stem with a cylinder of paper or tin. This need not touch the plant. One should expect to lose some plants, however, by cut worms, and be prepared with good plants to fill the vacancies. CABBAGE MAGGOT (_Anthomya brassicae_, Bouche)--Dr. J. A. Lintner, State Entomologist of New York, says of this insect: "This is probably the most injurious species of the _Anthomyiidae_, as its distribution is very extensive, both in Europe and America, and it has shown at times such capacity for multiplication as to cause the entire destruction of cabbage crops. It commences its attack upon the young plants while yet in the seed-bed and continues to infest them, in several successive broods, until they are taken up in the autumn. The larvae operate by consuming the rootlets of young plants, and by excoriating the surface and eating into the rind of older ones, or even penetrating into the interior of the root. When they abound to the extent of seriously burrowing the stalk the decay of the root frequently follows in wet seasons, and entire fields are thus destroyed." The same insect attacks the turnip, cauliflower, and probably other plants. A closely related species is very injurious to the radish. The presence of the insect most frequently becomes manifest upon the cauliflower about two weeks after the plants are set out, and is recognized by the plants ceasing to grow, and wilting or assuming a bluish appearance. Such plants should be at once removed, together with the earth immediately surrounding the root, and fresh plants which have been held in reserve set in their places. The only satisfactory remedies are preventive ones. The seed-bed should be composed of soil taken from the woods, or at least from some place where no cabbages or similar plants have been grown. But the most important precaution is to avoid growing the crop year after year upon the same ground, especially after the insect has made its appearance. The following remedy, given by Francis Brill, in his pamphlet on "Cauliflowers," is worthy of careful trial. Mr. Brill says: "The ravages of th
PREV.   NEXT  
|<   47   48   49   50   51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66   67   68   69   70   71  
72   73   74   75   76   77   78   79   80   81   82   83   84   85   86   87   88   89   90   91   92   93   94   95   96   >>   >|  



Top keywords:

plants

 

insect

 

cauliflower

 

species

 

injurious

 

appearance

 

frequently

 

entire

 

preventive

 
recognized

ceasing
 

immediately

 

surrounding

 
bluish
 

removed

 

manifest

 
wilting
 

assuming

 
radish
 

seasons


burrowing
 

abound

 

extent

 

fields

 

closely

 

related

 

presence

 

turnip

 

destroyed

 

attacks


collect

 

remedy

 

Francis

 
growing
 

ground

 

ravages

 

careful

 
worthy
 

pamphlet

 
Cauliflowers

precaution
 
places
 

satisfactory

 

remedies

 

reserve

 

composed

 

similar

 

important

 
cabbages
 

penetrating