INSECTS INJURIOUS TO FRUITS. 



87 



and remedies are much like those for other scales. It generally 

 yields readily to the whitewash treatment, but where many trees 

 are badly infested they should be treated with some of the solu- 

 ble oils, or lime and sulfur wash should be used. 



Woolly Apple Louse (Schizoneura lanigeraj; branch form. 

 When fully grown, this insect is dark colored and covered 

 with a cottony coating. They may be found covering the new 

 bark about wounds and in the axils of leaves and buds and 

 they may cause serious wounds when neglected. It comes from 

 small eggs laid near the base of the twigs. 



Remedies. They are easily destroyed by painting with kero- 

 sene. Where very numerous, it may be best to use whale oil 

 soap mixture, on account of the danger to the tree from using 

 kerosene. 



Insects Attacking the Roots of the Apple. 



Woolly Apple Louse (Schizoneura lanigera)', root form. This 

 insect attacks the roots as well as the branches of the apple. On 



33. Woolly Aphis, a. Mature insect, b. Swellings on the 

 root as a result of its injuries. 



