218 



November 1915 the following insects were found inside such belts : — 

 Anthonomus pomorum, Cydia pomonella, Scolytus mali, Euxoa segetum, 

 Acronycta rumicis, Tingis pyri and a great number of other insect 

 pests. The small numbers of the principal pests are attributed to the 

 effect of five years' application of such belts. The belts were put on in 

 autumn, or in February, the trees being previously covered with milk 

 of lime, so that all cracks, etc., should be stopped up. If put on in 

 spring, they can be re-smeared in autumn with an adhesive against 

 Cheimatobia brumata. Where straw is scarce and expensive, the belts 

 when removed can be put in hot water for five minutes and then dried 

 and replaced. These belts do not allow of spraying being dispensed 

 with, but ought to reduce the amount that is necessary by at least half. 



Vereshtchagin (B.). OnbiTbi 6opb6bi Cb nbflBMi^eM Bii Eeccapa6iM. 



[Experiments on the control of Lema melanopa, L., in Bessarabia.] 

 Reprint from « Beccapa6CK0e CenbCKOe X03flHCTB0.» [Agri- 

 culture of Bessarabia], Kishinev, no. 19, 1914, 4 pp. [Received 

 25th April 1916.] 



The Chrysomelid, Le7na melanopa, L., is a serious pest of summer 

 sown crops in the government of Bessarabia, injuring oats, barley and 

 wheat. The imagines winter in the soil, emerging in April and eating 

 the leaves ; the eggs are laid on the leaves ; the larvae live about a 

 month feeding on the leaves and pupate in the earth. Experiments 

 were made against this pest with various remedies, such as spraying 

 with Paris green and djipsin, powdering with a mixture of Paris green, 

 cement and sand, and cement and sand alone. A death-rate of 100 per 

 cent, was observed when powdering with a mixture containing 2 per 

 cent, and 6 per cent, of green, while the mixture without green gave 

 no positive results, the larvae being able to disentangle themselves 

 from the cement and sand. The best and least expensive remedy 

 consisted of spraying with 1 oz. of green and 2 oz. of quick lime in 3 

 gallons of water, with the addition of some molasses ; the spraying must 

 be done immediately the insects appear, adult larvae being less sus- 

 ceptible to the poison and seriously injured plants less able to recover. 



Vereshtchagin (B.). Kti noflenBHiio nyroeoro MOTbinbKa B"b Becca- 

 pa6iM. [On the appearance of Phlyctaenodes stidicalis in 

 Bessarabia.]— Reprint from « BeccapaSCKOe CeJlbCKOe XoSflM- 



CTBO. [Agriculture of Bessarabia], Kishinev, no. 15, 1915, 4 pp. 

 [Received 25th April 1916.] 



A general and popular account of the biology of Phlyctaenodes 

 sticticalis, an outbreak of which occurred in Bessarabia in 1915, is given. 

 On behalf of the Station of Kishinev various parts of the government 

 were visited and the damage done investigated ; this extended to 

 maize, market-garden crops, beet, peas, sunflowers, hemp, fruit trees 

 and bush fruit; beans and tomatoes escaped. On the whole the 

 damage did not appear to be very serious. 



