Short answer: (pertaining to Switzerland and European Union only)
Travelers from the Philippines may generally not bring fruits and vegetables into Switzerland and European Union.
The regulations differ slightly and since they are hard to find have been listed below (and where needed translated) with the corresponding sources.
having mangoes, bananas and other fresh fruits and vegetables, in our checked-in luggage from Manila
Nobody said nor was there any indication that it was not allowed.
It is true, that there is no sign listing everything you are not allowed to do at each border point
- this does, however, not allow you to do anything not explicitly meantioned
- murdering peaple being one of them
Swiss customs allow them anyway.
Did you stop at the Swiss Customs, show them the fruits and vegetables and ask if they are allowed?
- lets assume you did not, since the official sources contradict this claim
At an airport inside the European Union Customs Area you would have been told that Mangos (and possibly others of your unnamed fruits) was not allowed without a Phytosanitary Certificate when importing from the Philippines.
Allthough it is true that Switzerland is not part of the European Union Customs area, it would be wrong to assume that both do not share common rules when it is in their common interest. The Swiss VEAGOG regulation, as a sample, often quotes EU norms.
The Swiss Airport Zürich site (in German) also contains a clear statement on this topic:
The import of live plants and plant parts (including fruits / vegetables) from non-EU and non-EFTA countries and the Canary Islands is subject to restrictions or prohibited.
where a link to the Swiss Customs site goes into details:
b) Import from other states
Plants imported from countries other than the EU, Norway and Iceland (live or as part of plants) and flower bulbs are under the control of the plant protection service or may not be imported (see point 1b).
Anyone wishing to import such plants or plant products must inquire in good time before importation from the Federal Office of Agriculture about the applicable provisions.
Items that may not be imported (point 1b):
a) Originating in all countries
Miniature medlar (Cotoneaster)
Photinia - Photinia davidiana (syn. Stranvaesia davidiana)
b) Originating in all countries other than EU, Norway and Iceland
Apple tree (Malus)
Pear tree (Pyrus)
Mountain Ash, or hawthorn and rowan (Sorbus)
Potato and the like, other Solanaceae (Solanacea)
Real, edible chestnuts (Castanea)
Coniferous woods (conifers)
Quince tree (Cydonia)
Drupaceous trees (apricots, cherry, almond, peach, plum and damson) and all flowering types of the prunus variety
Hawthorn (Crataegus) all types and varieties
Flowering quince or quince (Chaenomeles)
Bitter orange or seville orange (Poncirus)
Citrus plants (Citrus)
Except for items that may not be imported
- which seems to also include Mangos
Allowance per person: cut flowers (bouquets) up to 3 kg maximum and fruits and vegetables (except for potatoes) up to 10 kg overall are not subject to phytosanitary measures.
When importing any of fruits listed below a Phytosanitary Certificate is needed
- such fruits must be reported to customs on arrival
- from European non-EU countries and the bordering Mediterranean:
- total of 3 kg are allowed
Unofficial list of fruits that need a Phytosanitary Certificate
and been listed elswhere (translated from German) as:
Annone Annona spp.
Apple malus spp.
Eggplant (eggplant) Solanum melongena
pear (also Nashi pear Pyrus spp.
Bitter balsam gourd Momordica spp.
Blueberry / cranberry Vaccinium spp.
Pomegranate punica granatum guava psidium spp.
Persimmon (lotus fruit, persimmon) Diospyro spp.
Potatoes (except sweet potato) Solanum tuberosum
Kumquats (including hybrids) Fortunatella spp
Mango Mangifera spp.
Passion fruit, Curuba Passiflora spp.
Malay apple (Jambos) Syzgium spp.
Paprika, chillies, chili Capsicum spp.
- bitter orange, incl. hybrids Poncirus spp
- cherries, plums, peaches,
nectarine Prunus. spp
tomato Solanum lycopersicum
Quince Cydonia spp.
Cassis, gooseberries Ribes spp.
Citrus fruits: all sorts,
- orange, mandarin, clementine, swinglea, Naringi, grapefruit, finger / lime
- Citrus spp, Swinglea spp., Microcitrus spp., Naringi spp.
Certain plants, plant products and other objects (listed in Part B, Annex V - Directive 2000/29/EC) entering the EU must have a phytosanitary certificate guaranteeing that they are:
- properly inspected;
- free from quarantine harmful organisms and practically free from other harmful organisms;
- in line with the plant health regulations of the importing country.
From Directive 2000/29/EC Annex V, Part B:
3. Fruits of:
— Citrus L., Fortunella Swingle, Poncirus Raf., Microcitrus Swingle, Naringi Adans., Swinglea Merr. and their hybrids, Momordica L., and Solanaceae,
— Actinidia Lindl., Annona L., Carica papaya L., Cydonia Mill., Diospyros L., Fragaria L., Malus L., Mangifera L; Passiflora L., Persea americana Mill., Prunus L., Psidium L; Pyrus L., Ribes L., Rubus L., Syzygium Gaertn., Vaccinium L., and Vitis L.