277 



Onrust (K.). Resultaten van het bespuiten van Frambozen met 

 Carbolineum voor de bestrijding van Lampronia rubiella, BJerk. 

 [The Results of spraying Raspberries with. CarboUneum against 

 Incurvaria {Lmn-pronia) rubiella, Bjerk.] — Tijdschr. Plantenziekten, 

 Wageningen, xxiii, no. 1, January 1917, pp. 17-30. 



Since 1909, when the injury was first reported, considerable damage 

 has been done to raspberries in North Brabant by Incurvaria {Lam- 

 pronia) rubiella, Bjerk. The raspberry crop, which is universally 

 grown, sometimes suffers to the extent of 50 per cent, through 

 infestation by this moth, the life-history of which is briefly described 

 [see this Review, Ser. A, iii, p. 741]. The larvae should not be confused 

 Avith those of Byturus (omentosus and B. fumatus (raspberry beetles) ; 

 these infest the fruit, which T. rubiella does not. The best controls 

 are spraying with carbolineum or banding with adhesive material. 

 The carbolineum should be of 8 per cent, strength and should be 

 applied with a good spray-pump both to the foliage and roots. This 

 should always be done before 15th March. 



RiTZEMA Bos (J.). Mestkevers van het geslacht Aphodius, III., als 

 Vijanden van de Chanipignon-kultur. [Dung-beetles of the Genus 

 Aphodius, 111., as Enemies of Mushroom Culture.] — Tijdschr. 

 Plantenziekten, Wagenirujen, xxiii, no. 1, January 1917, pp. 31-32. 



Early in September 1916 dung-beetles were reported as injuring 

 artificially grown mushrooms near Apeldorn. Most of the specimens 

 received were identified as Aphodius fitne far ius, L., the remainder 

 being A. ater, De G. These beetles enter the beds of horse 

 manure and feed on the mycelium in them. A. fimetarius is a 

 well-known pest of mushroom beds in France. 



ScHOEVERS (T. A. C). Proeven met eenige Chemicalien ter Bestrijding 

 van het Wortelaaltje {Heterodera radicicola, Greef). [Trials with 

 some Chemicals in the Control of H . radicicola, Greei. ]—Meded. 

 R. Hoogere Land-, I'uin- en Boschbouwschool, Wageningen, xii, 

 no. 1, 1917, pp. 46-48. 



The damage done by the Nematode, Heterodera radicicola, Greef, 

 in 1915 led to experiments in control being undertaken in the following 

 year wath a number of chemicals, of which a combination of lime 

 and sulphate of ammonia (kalk en zwavelzure ammoniak) appeared 

 to be the best, as evidenced by the condition of tomato-plants grown 

 in pots which were used for the te.sts. A handful of unslaked lime 

 was first mixed with the soil and then 10 grammes of dry sulphate 

 of ammonia added. The pot was subsequently well watered. 



Geoenewege (J.). Bestrijding van Insectenplagen van het Suikerriet 

 door Schimmels en Bacterien. [The Control of Insect Pests of 

 Sugar-Cane by Fungi and Bacteria.] — Meded. Proefstation de 

 Java-Suikerindustrie, Soerabaia, vi, no. 18, 1916, 11 pp. 



The author doubts the economic importance attributed by some 

 nvestigators to fungi and bacteria in the control of insect pests. 



