Cultivation or
irrigation methods that give a dry surface most of the time also
discourage these pests.
Cause of Mottle Leaf.
What is the cause and cure of mottle leaf of citrus trees?
There are apparently a number of causes of this trouble, all more or
less obscure and hard to overcome. It is generally thought that it is
due to poor nutrition, whatever the reason for poor nutrition might be.
The presence of a nematode or eel worm on the roots has found to be a
cause of mottle leaf in many cases. Poor drainage, too sandy soil and a
number of other things frequently cause it. Whatever the cause, no one
good method of cure has been found.
Potato Scab.
I think most of my potatoes will have some scab. Will you please tell me
if my next crop would be apt to have scab, provided I got good clean
seed and planted in the same ground?
It seems demonstrated that a treatment of the seed will practically
insure against potato scab. One method is dipping the potatoes in a
solution of corrosive sublimate. Dissolve one ounce in eight gallons of
water and soak the seed potatoes in this solution for one and one-half
hours before cutting.
Gopher Poison.
I have some alfalfa, some hogs and some gophers, also some strychnine
and carrots. If I put the strychnine on the carrots, and endeavor to
poison the gophers, and the hogs get hold of the poison will it kill
them?
You will find that hogs are liable to poison like any other animal, and
the safest way to poison the gophers, while the hogs are running in the
field is to bury the poisoned carrots very deeply in the gopher hole and
then put a row of sticks or branches over the mouth of the hole so that
the hogs cannot root around and get at the poisoned carrots.
Pages:
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460