Leafhoppers (Cicadellidae) A population of pale green leafhoppers (Empoasca sp.) developed parallel to the aphid and ant populations, reaching a peak of two per plant sample nearly two weeks prior to the first harvest and then rapidly declining (Table 2). Most of the popula- tion was concentrated below 45 cm on the plant and single leaflets in this height range averaged two individuals each. Damage symptoms occurred as weak chlorotic areas on some leaves, but otherwise the damage from leafhoppers appeared minimal. Leafminer Flies (Agromyzidae) L. sativae first appeared four days after seedling emergence and produced an average of 2.5 mines per leaflet (range, 1-17) one week later (Table 2). At that time and during the following week approximately 16% (range, 1-50%) of the leaf surface was damaged. As plant growth progressed over the next three weeks, these percentages declined and then began to slowly increase to infestation levels similar to the second and third week of growth. Leaf damage was confined to the basal /4 of the plant during the last 2/3 of the growth period. By the time the harvest was com- pleted, mines had also appeared in the middle and terminal leaves apparently due to an increase in population from a new generation. Immediate destruction of the plants should help limit this new population. The effect of leafminers on plant growth was difficult to estimate because leaves with mines did not turn brown or drop off. During the ten weeks between emergence and last harvest, 18% of the leaves were infested and about 7% of their surface was mined by larvae. However, between the third and eighth week the percentage of leaves mined was low because of the rapid production of new leaves and an apparent plateau in the leaf- miner population growth. In general, the impact on plant growth appeared to be minimal. Johnson et al. (1983) noted that TABLE 2. Population development of secondary insect pests on asparagus beans. Mean No. per Plant Samplea Solenopsis Empoasca sp. Liriomyza sativae geminata e of leaf f mines/leaflet Date w/damage 1/28b 0.6 0.04 (1 0.02 2/4 1.9 0.08 16 2.5 2/11 1.8 0.6 15 1.1 2/18 2.4 1.0 3 1.0 2/25 4.3 1.3 1.5 0.3 3/5 6.3 1.2 2 0.3 3/11 5.6 2.0 3 0.7 3/19c 0.7 0.5 7 1.5 3/25 0.8 0.5 12 1.6 4/11 0.6 0.4 10 2.0 A plant sample consisted of 1 trifoliate (including petiole) near the bottom, middle and top of plant, and the length of the main stem. The first true leaf substituted for a trifoliate on newly emerged plants. N=96 for weeksl-4 and n=24 thereafter. Seedlings emerged Jan. 24-25, 1982. SFirst harvest was March 22, 1982. VOL. XX-PROCEEDINGS of the CARIBBEAN FOOD CROPS SOCIETY although L. sativae mining in tomato leaves could greatly reduce the photosynthesis rate, it may not reduce the rate to a level that decreases fruit production. WaspS in the family Braconidae (Opius sp.) and Eulophidae (Diaulinopsis sp. and Chrysonotomyia sp.) were observed parasitizing leafminer larvae in the field and adult wasps were reared from leafminer pupae. In one instance 42 adult leafminers and 20 wasps emerged from one group of leaves. Miscellaneous insects and mites Table 3 lists all insects and mites recorded on asparagus beans. Those not previously discussed were observed sporadically. TABLE 3. Arthropods collected from asparagus beans. Plant feeders Thysanoptera Thripidae Thrips Hempiptera Pentatomidae Stink bugs Nezara viridula (L.) Southern green stink bug Thyanta sp. Delphacidae Planthoppers Sogata sp. Cicadellidae Leafhoppers Empoasca sp.1 Agallia albidula (Uhler)1 Aphididae Aphids Aphis craccivora Koch Cowpea aphid Coleoptera Chrysomelidae Leaf beetles Ceratoma ruficornis Oliver Lepidoptera Noctuidae Noctuid moths Spodoptera sp. an armyworm Diptera Agromyzidae Leafminers Liriomyza sativae Blanchard Vegetable leafminer Acarina Tetranychidae Red spider mite Tetranychus sp. Miscellaneous feeders Coleoptera Pselaphidae Shortwinged mold beetle Hymenoptera Formcidae Ants Solenopsis geminata (F.) Fire ant Halictidae Halictid bees Predators Neuroptera Chrysopidae Green lacewings Chrysopa sp. Coleoptera Coccinellidae Lady beetles Cycloneda sanguinea Casey Diptera Syrphidae Flower flies Pseudodoros clavatus (F.)1 Parasites Diptera Tachinidae Tachina flies Hymenoptera Braconidae Braconid wasps Opius sp. Eulophidae Eulophid wasps Diau/inopsis sp.1 Chrysonotomyia sp.' 'Not listed in Miskimen and Bond (1970). 59