476 



cable features, as all fine spraying will rapidly cool the temperature, 

 whereas if steam is generated, the required temperature can be more 

 easily made to reach the insects. Incidentally also we wished to have 

 further experiments made with the kerosene emulsion, with pyrethrum 

 extract, and with kerosene extract of pyrethrum. The one great diffi- 

 culty in the way of using effective destructive agents against the Rose 

 Chafer, as we have pointed out in the columns of this Bulletin, and as 

 we indicated to Mr. Carman upon the announcement of his discovery, is 

 the continuous incoming of fresh beetles whenever they are excesssively 

 abundant, the result being that after destroying every beetle ui)on a 

 given plant in the morning they may cover it again in the evening. A 

 good and simple method of killing, however, will be of immense value, 

 because of the fact that every female beetle destroyed will not only les- 

 sen the injury to some extent at the time, but will also tend to lessen it 

 very materially for the ensuing year. 



NEW HORTICULTURAL LAWS FROM CALIFORNIA. 



The following is the full text of the amendment to the act to promote 

 the horticultural interests of the State of California, passed during the 

 last session of Congress, and defining the duties of the county boards 

 of horticultural commissioners: 



Chavteu clxxxviii. — Au act ameudatory of an act entitled "An act to amend an 

 act entitled 'An act to promote the horticultural interest of the State' " approved 

 March 14, 1881, approved March 19, 1889. 



(Approved March 31, 1891.) 



Section 1. Section 2 of said act is hereby amended so as to read as follows : 

 Sec. 2, It shall be the duty of the county board of horticultural commissioners in 

 each couuty, whenever it shall deem it necessary, to cause an inspection to be made of 

 any orchards, or nursery, or trees, ^ilants, vegetables, vines, or fruits, or any fruit- 

 packing house, storeroom, salesroom, or any other place or articles in their jurisdic- 

 tion, and if found infested with scale insects, or codlin moth, or other pests injurious 

 to fruit, plants, vegetables, trees, or vines, or with their eggs or larvie, they shall 

 notify the owner or owners, or person or persons in charge or possession of the said 

 places, or orchards, or nurseries, or trees, or plants, vegetables, vines, or fruit, or 

 articles, as aforesaid, that the .same are infested with said insects, or other jiests, or 

 any of them, or their eggs or larvae, and they shall require such person or persons to 

 eradicate or destroy the said insects or other pests, or their eggs or larvie, witkin a 

 certain time to be specified. Said notices may be served upon the person or persons, 

 or either of them, owning, or having charge, or having possession of such infested 

 place, or orchard, or nursery, or trees, plants, vegetables, vines, or fruit, or articles, 

 as aforesaid, by any commissioner, or by any person deputed by the said commis- 

 sioners for that purpose, or they may be served in the same manner as a summons 

 in a civil action. Any and all such places, or orchards, or nurseries, or trees, plants, 

 shrubs, vegetables, vines, fruit, or articles thus infested, are hereby adjudged and 

 declared to be a public nuisance. And whenever any such nuisance shall exist 

 at any plrce within their jurisdiction, or on the property of any non-resident, or 

 on any property, the owner or owners of which cannot lie found by the county 

 board of horticultural commissioners, after diligent search, within the county, or 

 on the property of any owner pr owners upon >yhich notice aforesaid has been 



