553 



Ultee (A. J.). Verslag over het Jaar 1921. [Report of the Besoeki 

 Experiment Station for 1921.] — Meded. Besoekisch Proefst., 

 Djemher, no. 32, 1922, 38 pp. 



Tobacco seedlings were attacked by the caterpillars of Phytometra 

 {Pliisia) signata and Heliothis ohsoleta, which were checked by a lead 

 arsenate spray. The measures advocated against Lepidopterous pests 

 of tobacco are the use of a spray of lead arsenate and soap on seedlings 

 in the beds and, if necessary, after planting out. When the plants are 

 a foot high, dry lead arsenate should be dusted on them, and later on, 

 when their size renders this inconvenient, the caterpillars should be 

 picked off. Against Aphids in the dry season a solution of tobacco soap 

 proved a cheap and effective remedy. 



WiLLcocKS (F. C). A Survey of the more important Economic 

 Insects and Mites of Egypt. — Sultanic Agric. Soc, Cairo, Tech. 

 Sec, Bull. 1, 1922, viii+483 pp. 



No attempt has been made for many years to give a general account 

 of the commoner insects and mites that damage agricultural and 

 horticultural crops in Egypt. This work presents a preliminary survey 

 consisting of a series of notes and brief records, and is divided into 

 sections dealing with pests of agricultural crops, vegetable crops, 

 fruit and fruit trees, timber, ornamental and shade trees, and stored 

 products, household pests, pests affecting the health of man and 

 animals, and insects injurious to bees. The more commonly used 

 insecticides are enumerated, and instructions are given for their 

 preparation. The author considers that the apparent apathy of the 

 native population with regard to pests is due, not so much to indifference 

 as to lack of teaching and of available literature on the subject, and it 

 is hoped that this publication will at least temporarily fill this want, 

 and perhaps lead to further work on the same lines. 



Ferriere (C). Entomologie economique. Les Problemes modernes 

 de la Lutte contre les Insectes et leur Application en Suisse. — 



Berne, Edn. Ernest Bircher, 1922, 36 pp. 



This work is divided into a series of chapters explaining the growth 

 of the interdependence between entomology and agriculture, horti- 

 culture, sylviculture, and the rearing of domestic animals and public 

 health, as well as various branches of industry and commerce. The 

 last chapter discusses the status of economic entomology in Switzerland. 

 Attention is called to the importance that is attached in the United 

 States to the problems connected with entomology, and it is deplored 

 that Switzerland is almost alone in possessing no special service of 

 entomology and phytopathology. Though there are competent 

 entomologists at the various federal experimental stations, as well as 

 in the various agricultural schools, there is a lack of cohesion among 

 these institutions, as well as a shortage of funds, and this prevents 

 prompt and efficient treatment of problems as they arise. 



Some of the more pressing problems in Switzerland are the improve- 

 ment of the campaigns against Melolontha ; measures against the 

 larvae of cabbage butterflies [Pieris brassicae, L.] ; wireworm dam^age to 

 wheat ; the woolly aphis [Eriosoma lanigerum, Hausm.] in orchards ; 

 and Aphids and Coccids, notably the occurrence of Diaspis pentagona 

 on mulberry trees at Tessin, which menaces the silkworm industry and 

 should be dealt with by the biological method, as is being done in Italy 



(7933) 2 p 



