-639- 
IIISECT COHDITIOHS' IN MEXICO FROM JA13UARY TO JUITE 30, 193i. 
By.Ing. Julio Requelme Inda, 
Chief, Department of Technical Publications, 
Office of 'Federal Service for the Defense of Agriculture, 
San Jacinto, D. F. , Mexico. 
In the vicinity of Coatepec, Vera Cruz, there was a notable decrease 
in the fruit fly Anastrepha ludens Loew on orange. The mango continues to 
be attached by this insect, hut each time to a less degree. This., insect 
was observed 'on mango,- guava, plum, and orange in Coscomatepec, Vera Cruz,,; 
It was common on oranges and custard apples (Annona) in Iguala, Guerrero, 
at all times but it lias not caused as much damage as usual this year on 
account of careful watch for insects and good cultivation. Observed on 
orange in Put la', Oaxaca. 
Anastrepha striata Schiner is common at all times on guava in Iguala, 
Guerrero. It lias 'not caused as much damage as usual this year on account 
of careful watch for insects and good cultivation. 
Anastrepha fratercula Wied. was observed attaching a variety of 
fruits, especially when uncared for, in the vicinity of Merida, Yucatan.' 
Common at all times on Uanche ( Brysonima crassifolia ) and plum in Iguala, 
Guerrero. It has not caused so much damage this year as usual on account 
of careful cultivation and a close lookout for insect pests. 
Ale^rodes citri Riley, & Howard was found on leaves of orange in the 
vicinity of Coatepec, Vera Cruz. 
S t e phano d e r e s cof feae Hog. was observed attacking the coffee tree in the 
vicinity of Coatepec, Vera Cruz. 
Dactylopius destructor Comst. was observed attacking the coffee tree 
in Coatepec, Vera Cruz. - 
Aiithonomus grand is Boh. was common on all Malvaceae grown in the 
Grijalva River Valley from Chiapa de Corzo to Concordia, Chiapas. It 
began its depredations in March. It was. also present in the vicinity 
of Acapulco, Guerrero, and was observed in all parts of.Oaxaca, where 
cotton is grown, principally in Santo Domingo : during March. 
Al abam a argil lac ea Hbn. was observed on cotton in the vicinity of 
Acapulco, Guerrero. 
Diatraea saccharalis Fab. was observed en sugarcare in Iguala, 
Guerrero. 
In the State of Oaraca, Sphenophorus incurrens Gyll. occurs generally 
on sugarcane the """ear round, but it doer no very considerable damage. 
