FUNGI PARASITIC UPON AI.KYRODES CITRI. 



-rnwtli. ( )n November 11, numerous conidia were present in pink masses 

 on tin- sides of the rice. ( )n the bread, on September 28 (5 days), a delicate 

 white growth was formed over the upper surface. On October 10 (15 

 days), the growth had taken up every available space in the pores of the 

 bread. giving it a pinkish matted appearance. 



( )n ( October 11 the following- cultures were made by transferring spores 

 from the bread cultures of September 25, which had been transferred once 

 before. Three tubes of agar, one of sweet potato, one of Irish potato, one 

 of rice in a .">() cc. flask, and one of bread were used. Notes were taken on 

 ( >ctoher 1!' only. In the three agar tubes, which reacted 1.0, 1.5 and 2.0 

 respectively to phenolphthalein. the growth was about one inch high with 

 abundance of conidia. There was no noticeable difference in the growth. 

 ( )n sweet potatoes, a pure white, delicate growth appeared ; on Irish po- 

 tatoes, a very abundant growth; on rice, an abundant growth with a -pink- 

 ish color on the surface, and thick mycelium between the rice grains. 



INKKCT10N OK AUCYROPKS CITRI. 



On September 1!>, 1!M)7, infection experiments were made on healthy 

 whiten*}- larvae from cultures of this fungus. The larvae were on the leaves 

 of a privet hedge (Ligustnuii ovali folium) in Gainesville. The following 

 is taken from notes made at the time of the experiments : 



Healthy larvae were very abundant on the privet leaves. The weather 

 was damp after a rain. Inoculations were made from 3 to 5 p. M. 



\o. 1. Inoculation was made from culture of September 14; conidia 

 were penciled on the under side of the leaves on one branch with a moist 

 camel s-hair brush ; a piece of cheese cloth was tied around the inoculated 

 branch. On September 21 no conidia were found; the cheese cloth was 

 removed. On September 2<S, no conidia were found. On October 5, abund- 

 ant conidia of Microcera were present. On October 25, about 50 per cent, 

 of the larvae were dead. 



\o. 'I. Inoculation was made from same culture, penciled on as in No. 

 1, but not covered with cheese cloth. On September 28, no spores were, 

 found. On October 1, spores of Microcera were present. On October 5, 

 pink spore-masses were developed on the edges of larvae. P>y October 25, 

 about -V> per rent, of larvae were dead. 



\o. 3. Conidia were penciled on as above, and not covered with cheese 



cloth. On September 21. no spores were found. On September 28, no 



spores were found. On October 1. Microcera spores were present. ' On 



nk spore masses were present on the edges of the larvae. ( )n 



( )cto],er 2~>. about ."in per cent, of the larvae were dead. 



Xo. I. Inoculation was made from larvae on citrus leaves from Mana- 

 \o cheese cloth was tied around. ( )n September 21. larvae seemed to 

 be attacked by a small fungus, which looked like the Microcera of the 

 cultures. The conidia were one- and two-celled. ( )n September 2, abund- 

 ant spores of .Microcera >n .lead larvae were found, and live larvae with 

 filaments ,,f fnngns within. About (in per cent estimated dead. On Octo- 

 ber "). pink conidial masses were evident on edge's of larvae. 



No. 5, A branch as a check was not inoculated. l,nt tied up with cheese 

 cloth. On September 21, no COnidia of Microcera were to be found. On 

 September 2s. n> conidia of .Microcera to be found. 



