(32 EXPEEIMENT STATION RECORD. 



insecticides is advised, the petroleum soap or similar mixtures being recommended. 

 Another formula highly commended is water 100 liters, (quicklime 20 kg., and heavy 

 coal oil 8 kg. Winter washes are also advised. 



Fungi occurring in the greenhouses of the Berlin Botanic Gardens, 1'. Hen 

 KINGS ( Verhaiidl. Bat. Yer. Brandenburg, 40 [1898), p. 109; abs. hi Ceidbl. Bukt. u. Par., 

 2. Abi.,0 {1899), No. SO,pp. 687-G89) .—An extensive list of fungi and their host plants 

 is given. 



The nematode and ammonia salts, C. Schkeiber {Rev. Gen. Ayron. Louvain, 9 

 {1900), Xo. .), jip. 97-10..'). — This is an account of experiments during 1897, 1898, and 

 1899 on tlie use of ammonia salts to destroy nematodes in the soil. Annnonium 

 chlorid and nitrate proved effective for this jwrpose. 



Notes on Bordeaux mixture ( Wiener III us. Gart. Zt(j.,24 {1900), No. l,pp. 13-15) . 



Potassium permanganate as a fungicide, A. Chevallier {Prog. Agr. el Vit. 

 {Ed. L' Est.), 21 {1900), No. 4,PP- 113, ii-^).— Potassium permanganate 100 gni., soap 

 200, and water 100 liters, is said to make a convenient and efficient fungicide for 

 combating black rot and grape mildew. 



On the use of calcium carhid as a fungicide, F. Galuet {Prog. Agr. el Vit. 

 {Ed. UEst.), 21 {1900), No. 4, PP- 1^6, i^7).— Notes the successful use of tliis 

 substance for the prevention of oidium. 



ENTOMOLOGY. 



Insect notes for 1899, A, L. Quaixtance {Georgia Sta. Ept. 1899, 

 pp. lJi,l-lIfJj). — Some experiments were conducted in the destruction 

 of Ajjhls mail. A 10 per cent mechanical mixture of kerosene and 

 water killed 50 per cent and a 15 per cent mixture killed 90 per cent 

 of the insect.s without injur}' to the trees, while a 20 per cent mechani- 

 cal mixture killed 92 per cent of the insects, Ijut killed the tree. 



Rose Leaf, 1 part to 48 parts of water, killed 98 per cent of the 

 insects. Nikoteen in the same proportion killed from 99 to 100 per 

 cent of the insects, while whale-oil soap, 1 lb. to 6 gai. of water, killed 

 9(j per cent of the insects. These 3 remedies caused no injuries to the 

 trees. Rose Leaf proved almost as effective as Nikoteen, and is much 

 cheaper. 



The harlequin cabbage bug {Murgantia histrionica) was unusuall}^ 

 abundant during the year. A 10 per cent mechanical mixture of kero- 

 sene and water killed about 15 per cent of this insect, a 15 per cent 

 mixture killed from 35 to 40 per cent, while a 20 per cent mixture 

 killed about 85 per cent of the bugs, but the latter mixture injured 

 the plants considerably. Nikoteen, 1 part to 32 parts of water, killed 

 about 45 per cent of the insects, and Rose Leaf, 1 part to 32 parts of 

 water, killed none of the insects, although it seemed to act as a 

 repellent. 



The author states that despite the severity of the winter of 1898-91>. 

 injurious insects caused more than the usual amount of damage through- 

 out the State during the year. 



The latter part of the report is a reprint of an article already noted 

 (E. S. R., 11, p. 952). 



