Pests And Diseases Of Plants
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Apple-leaf Aphis
I am sending herewith a small piece from one of my young apple trees. If you can, will you kindly tell me what the insects are an it, and what I had better do for them? The apple twig which you send is infested with the eggs of the leaf aphis... Bean Weevil
How can I keep certain insects from getting into my dry beans? I have finished picking the crop. Every year a little, short, stubby beetle gets in them before spring and makes them unfit for use. You have to do with the bean weevil. The eggs a... Blister Mite On Walnuts
I am sending you some walnut leaves with some swellings an them. They are very plentiful on some trees here. Is the trouble serious and will it spread? This is merely Erinose, or Blister Mite, which is a very common trouble on walnuts, but do... Borers In Olive Twigs
There are quite a number of olive trees in this locality that have something wrong with them. They make a growth of five or six inches and the center twig dies back, then it sprouts out at the sides and makes another growth in the same way. This... 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 fo... Control Of Grasshoppers
This county is having trouble with the grasshoppers as are other counties. Would you kindly inform me what I could do to exterminate them on my young orchard? The best thing for grasshoppers is to fix up a lot of poison. This is made in the p... Control Of Pear Slug
I am sending, under separate cover, some samples of cherry tree leaves that have been attacked by a small snail or slug. Kindly let me know what they are, and how to rid the trees of them. The creatures you speak of are the pear slugs, or the ... Control Of Red Spider
Can you give directions for the prevention of injury by the red spider to almond and other trees in the Sacramento volley? The red spider on almond and prune trees is usually controlled by the thorough application of dry sulphur to the foliage... Control Of Squash Bugs
... Cutworms And Young Trees
What method should be used to protect young fruit trees from cutworms? Hoe around the trees or vines and kill the fat, greasy grubs which you will find near the foliage. Put out a poisoned bait which the worms like better than the foliage, viz... Depluming Mites
My chickens are losing the feathers from their necks, some three inches down the front and then extending around the neck. The loss of feathers is probably due to the depluming mite. Dust well with buhach through the feathered portion of the b... Finding Thrips
How can the presence of pear thrips be detected in a prune orchard? Will the distillate emulsion-nicotine spray control brown scale as well as thrips? You can find thrips by shaking a cluster of blossoms, as soon as they open, over a sheet of... Formula For Lime-sulphur
To make lime-sulphur take quick-lime, 20 pounds; ground sulphur, 15 pounds and water 30 gallons. Slake the lime with hot water in a large kettle, add the sulphur and stir well together. After the violent slaking subsides add more water and boil ... Fumigating For Black Scale
I would like to know the best method of eradicating the black scale from my orange trees, whether by spraying or fumigation? Spraying has been given up as a suitable method for controlling the black scale on citrus trees, and the only recogniz... 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 ... Gumming Of Prune Trees
I write to ask for information concerning my prune trees. They are from two to six years old and the gum is exuding from them. As I notice the branches dying I cut them out, but this doesn't seem to save the tree. I would appreciate any informat... How To Make Bordeaux
Use copper sulphate (bluestone) 5 pounds; quick-lime (good stone lime), 6 pounds; water, 50 gallons. Put the bluestone in a sack and hang it so it will be suspended just under the surface of a barrel of water over night, or dissolve in hot water... I Would Like To Know How To Check The Scale On Apricot Trees
The most common scale on apricots, the brown apricot scale, is usually held in check by the comys fusca, which is as widely distributed as the scale itself. If it gets beyond the parasite, you should spray in winter with crude oil emulsion. If some ... Liquid Spray For Red Spider
Is there any liquid spray I can use in my spraying that will kill the red spider without injuring the foliage of the almond? A liquid spray for red spider is made by taking sulphur 30 pounds; lime (reduced to milk form by water), 15 pounds; wa... Melon Lice
I have in about four acres of watermelons, and there seem to be lice and a small gnat or fly, and also some small green bugs and white worms on the under part of the leaves, which seem to be stopping the growth of the vines, making them wilt and... 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 practica... Raspberry Cane Borer
Can you tell me what to do for my Loganberries and raspberries? A small worm got into them in the new growth of wood lost summer, right in the tips of the new growth of wood, and then worked down through the pith of the wood, and as fast as they... Scale On Apricots
... Slugs In Garden
Can you advise me how I can get rid of slugs in my garden? When barriers of lime, ashes, etc., are ineffective, traps consisting of pieces of board sacking and similar materials placed about the field prove inviting to the slugs. They collect ... Sunburn And Borers
Please state the best remedy for keeping the borer out of young fruit trees. Sunburn can be prevented in many ways. The manufactured tree-protectors are good if they are light colored and are kept in place so that the sun does not scald above... The Corn Worm
Last year all my ears of corn were infested with maggot, growing fat thereon. Can you help me scare them away? You have to do with the so-called corn worm which is very abundant in this State and one of the greatest pests to corn growing. It i... We Are Troubled With Pumpkin Bugs Please Tell Us What To Do For Them
When the bugs first make their appearance in the field they can be easily disposed of by hand picking and dropping into a bucket containing about two inches of water with about one-fourth inch of kerosene on top to kill the bugs. The picking should ... Wire Worms
Is there any way to destroy or overcome the destructive work of the wireworm, which I find in some spots takes the lion's share of crops, such as beans, potatoes, onions, etc.? We do not know any easy way with wire worms. Nitrate of soda is be... Woolly Aphis
Will you kindly inform me what you consider the best treatment for apple trees affected by woolly aphis? The best way to kill the woolly aphis on the roots is to remove the earth from around the tree to a distance of one or two feet, according...