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on reclaimed grassland. Experiments with poison baits for these 

 wireworms gave doubtful results. 



Phaedon cochleariae, F., and P. armoraciae, L., appeared in the 

 middle of April but were only abundant with the advent of warm 

 weather. Under laboratory conditions eggs were laid on 16th June 

 on the leaves of wild radish. Eggs have also been found on turnips 

 and cabbages ; they hatch in about seven days. Other flea-beetles 

 included :—Phyllotreta undiilata, Kutsch., P. nemornm, L., P. con- 

 sobrina. Curt., P. sinuata, Steph., and P. nigripes, F., on cabbages, 

 turnips, mustard and various weeds. All these species were found in 

 the latter half of April in the field on Capsella and Raphanus and on 

 young turnip leaves that had survived the winter, while in the gardens 

 only P. nigripes, F., occurred on Capsella and on cabbage in the 

 forcing beds. Towards the end of the month the other species also 

 appeared in gardens, and all species attacked turnips and beetroots 

 planted out for seed in May. 



The larvae of the summer generation of P. undulata were found 

 mining the leaves of wild radishes and turnips at the beginning of 

 July. They entered the soil to pupate about 28th July, this stage 

 lasting from 18 to 27 days. The last adults emerged 7th September. 



Ceuthorrhynchus sp. was abundant in the larval stage on cabbages, 

 crawling down the stem and eating out the heart. 



The pests of grain crops are Haplothrips (Anthothrips) aculeatus, 

 F., Frankliniella {A.) tritici, Kurdj., Liniothrips denticornis, Hal., 

 Aelia acuminata, L., Ochsenheimeria tanrella, Schiff. (grain moth), 

 Lenta melanopa, L., L. cyanella, L., Oscinella (Oscinis) frit, L., and 

 O. pitsilla, Meig. The last two appeared at the end of May, and 

 larval injury to oats and barley was noticed at the beginning of 

 June. Cocoons were found in the stems at the end of June, the 

 inactive stage lasting seven or eight days. The second or summer 

 generation of O.frit is thus established in the ears of oats ; the adults 

 begin emerging at the end of July, and larvae were found on 17th 

 August. The eggs of Chlorops taeniopus, Meig., were observed on 

 the leaves of barley. The larvae appeared during June and the first half 

 of July, and the adults emerged between 30th July and 15th August. 



Pests of forage crops are Sitona sp., on clover, the eggs of which were 

 laid about the end of April ; Apion sp. ; and Cleigastra fiavipes. Fall., 

 on timothy and rye. 



Other pests recorded are Psylla mali, Forst., the eggs of which were 

 noticed on the branches of apple about 20th August, and Aphis pomi, 

 DeG. Although Coccinellids were numerous among the colonies of 

 the latter, they were not of much value as they were themselves 

 parasitised by Perilitus terminatus, Nees. Cheimatohia brumata, L., 

 occurred in abundance on apples and cherries. Pupae of Cydia 

 (Carpocapsa) pomonella, L., were noticed in cracks of the bark up to 

 22nd April. About 22nd July the larvae began entering the 

 trap bands for hibernation. The first adults of Hyponomeuta malinellus, 

 Z., appeared in the laboratory on the 26th June and in the field on 

 the 1st July. This moth is heavily parasitised by an undetermined 

 Hymenopteron. Byturiis tomentosus, F., was occasionally found on 

 raspberry and other plants. Injury by Anthonomus pornorum, L., 

 was already clearly noticeable between ISth to 20th May ; the adults 

 emerged at the beginning of June. 



