THE MONTHLY BULLETIN. . 187 



of the olive. Cut out all diseased parts and saturate the wounds with 

 a stronjL]: disinfectant such as t-orrosive suliliniate, using one part to 

 1,000 parts of water. 



Grape Mildew. 



Grape mildew may be observed as a white powdery growth on the 

 leaves and fruit clusters of the grape. Dust tlioroughly with flowers 

 of sulphur in moist weather before the fungus develops. R. E. Smith^ 

 states that the common mistake made by many growers is the failure to 

 treat the vines thoroughly and repeatedly enough in the l^eginning of 

 the season. The first suli)huring sliould be done when the shoots are 

 between six and fifteen inches long, and every part of the vine and the 

 entire vineyard must be covered. This must be followed by two or 

 three days of Avarm weather to be eft'ective. It may be necessary to 

 repeat the sulphuring process several times in order to secure proper 

 weather conditions. 



Brown Rot of Apricots. 



The fruit is the most susceptible to the brown rot fungus, but afteu 

 the tender twigs are blighted and killed. The half-grown fruit is 

 more easily attacked than the young. The di-ease first appears as small 

 brownish decayed spots on the fruit, the spots increasing in size until 

 the whole fruit is infested. Use 8/8/50 self -boiled lime sulphur when 

 fruit is setting and again following subsequent rains. 



'Bui. 218, Calif. E.\p. Sta., page 1115. 



