Responses of Anastrepha suspensa, Diachasmimorpha longicaudata, and Sensitivity of Guava Production to Heterorhabditis bacteriophora in Fruit Fly Integrated Pest Management

[i] na: Not applicable, because guava fruit that drop to the ground are not observed in every 1 cm² soil surface in infested guava orchards; ^aThe equivalent best IJ rate for EPN treatment to an infested fruit in plot (i.e., 350 cm²) at 50 IJs cm⁻² is 17,500 IJs fruit⁻¹ (Figures 1, 2); ^bAdditional 28% was included to account for unexpected uncertainties or increases that may rarely occur from March to July; ^cAnnual cost estimates for hectare-wide EPN-augmentation or broadcasting strategy in the period from March-July = 970 × 5 ≈ US$ 4,850 ha⁻¹; ^dAverage annual cost estimates for spot treatment method in March-July period = (9.34 + four-hour-labor costs) × 5 ≈ US$ 266.70 ha⁻¹; ^eFrom March to July, the ratios between 0 and 5 fruit tree⁻¹ on any given day will often be observed on the ground in guava orchards (Heve et al., 2018).

[i] ^a Heterorhabditis bacteriophora and insecticides were considered to effectively suppress fruit-to-soil stages of Caribfly belowground and their adults aboveground, respectively, because other Caribfly control approaches are rarely observed in south Florida guava orchards due largely to high costs involved; ^b Annual wholesale base revenue = ‘Annual wholesale base yield (ca. 8,967 kg ha⁻¹) times base price (US$ 4.41 kg⁻¹)’ is equivalent to US$ 16,000 acre⁻¹ in report of Evans et al. (2018); ^c These are largely non-susceptible mature hard dark green guavas; susceptible “light-green-to-yellow” ripening guavas lost annually are estimated to be (10,930 kg ha⁻¹ minus ca. 8,967 kg ha⁻¹ ≈ 1,963 kg ha⁻¹), equivalent to US$ 8,650 ha⁻¹; ^d Additional information can be obtained from reports of Garcia et al. (2014) and Evans et al. (2018).