CONTROLLING INSECTS 



AND 



DISEASES 



s 



Explanations 



For the control of pear psylla use 

 an oil spray as an early spring 

 application Ix'fore egg laying 

 begins. Apply with the first gocxl 

 spraying wciithcr. Refer to St^c- 

 tion 47 for specific instnictions. 



This is good insurance against 

 scab on any susceptible variety 

 and should everywhere be made 

 on Flemish Beauty or similarly 

 susceptible varieties. 



This should always be made in 

 districts where scab is prevalent 

 and everywhere on varietira such 

 :us Flemish Beauty In ftiany 

 parts of the state, however, scab 

 is seldom serious on most vari- 

 eties. In such cases measures 

 for its control may not be 

 necessary. 





Bordeaux may be omitted if scab 

 and leaf-blight are not present. 

 Refer to Section 47 for the sum- 

 mer treatment of psylla. 



Warning. Important 



Govern the use of lead arsenate 

 during the summer by the preva- 

 lence of codling moth. Read 

 carefully Section 46. 



Bordeaux mav be used at this 

 time on varieties very susceptible 

 to scab. Read carefully Section 46 



To Control 



Psylla, scale insects, and mites. 



Scab, leaf-bhght, curculio, and 

 bud moth. 



Scab, Iciif-blight, curculio, and 

 bud moth. 



Scab, leaf-blight, codling moth, 

 curculio, and other chewing 

 insects. 



Codling moth, curculio, other 

 chewing insects, scab, and 

 leaf-blight. 



Codling moth and curcuho. 



Codling moth and curculio. 



Codling moth and curcuho. 



Materials 



Oil emulsion. 3% heavy oil, or 

 a commercial oil spray. 



Bordeaux 3-8-100 and lead 

 arsenate 3 lb. in each 100 gal. 

 Refer to Sections 16 and 17 

 for instructions for making 

 Bordeaux. 



Bordeaux 3-8-100 and le^ui 

 arsenate 3 lb. in each 100 gal. 

 Refer to Sections 16 and 17 for 

 instructions for making Bor- 

 deaux. 



Bordeaux 2-8-100 and lead 

 arsenate 3 lb. in each 100 gal. 

 of spray. 



Bordeaux 2-8-100 and lead 

 arsenate 3 lb. in each 100 gal. 

 of spray. 



Lead arsenate 3 lb. and water 

 to make 100 gal. 



Ixiad arsenate 3 lb. and water 

 to make 100 gal. 



Lead arsenate 3 lb. and water 

 to make 100 gal. 



Application 



1. Dormant. Apply with the 

 first good spraying weather 

 in March or early April. 



2. Delayed dormant, or pre- 

 pink. Latter stage is 

 shown at left. 



3. Pink. Apply when the 

 buds have separated in 

 the clusters but before the 

 blossoms have opened. 



4. Petal-fall or calyx. Just as 

 the petals are falling. 



5. Pint cover. Two weeks 

 after petals fall. 



5a. Second cover. Two weeks 

 after AppUcation 5. 



5b. Third cover. Two weeks 

 after Application 5a. 



6. Summer generation. Time 

 determined the same as for 

 apples. 



